1000000000 (number)

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## Sense of scale

### Time

### Distance

### Area

### Volume

### Weight

### Products

### Nature

### Count

## Selected 10-digit numbers (1,000,000,001-9,999,999,999)

### 1,000,000,001 to 1,999,999,999

### 2,000,000,000 to 2,999,999,999

### 3,000,000,000 to 3,999,999,999

### 4,000,000,000 to 4,999,999,999

### 5,000,000,000 to 5,999,999,999

### 6,000,000,000 to 6,999,999,999

### 7,000,000,000 to 7,999,999,999

### 8,000,000,000 to 8,999,999,999

### 9,000,000,000 to 9,999,999,999

## References

This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.

1000000000 Number

1000000000 | |
---|---|

Cardinal | One billion (short scale) One thousand million, or one milliard (long scale) |

Ordinal | One billionth (short scale) |

Factorization | 2^{9} · 5^{9} |

Greek numeral | |

Roman numeral | M |

Binary | 111011100110101100101000000000_{2} |

Ternary | 2120200200021010001_{3} |

Octal | 7346545000_{8} |

Duodecimal | 23AA93854_{12} |

Hexadecimal | 3B9ACA00_{16} |

**1,000,000,000** (one billion, short scale; one thousand million or milliard, yard,^{[1]} long scale) is the natural number following 999,999,999 and preceding 1,000,000,001. One billion can also be written as **b** or **bn**.^{[2]}^{[3]}

In standard form, it is written as **1 × 10 ^{9}**. The metric prefix giga indicates 1,000,000,000 times the base unit. Its symbol is

One billion years may be called an *eon* in astronomy or geology.

Previously in British English (but not in American English), the word "billion" referred exclusively to a million millions (1,000,000,000,000). However, this is no longer common, and the word has been used to mean one thousand million (1,000,000,000) for several decades.^{[4]}

The term * milliard* can also be used to refer to 1,000,000,000; whereas "milliard" is rarely used in English,

In the South Asian numbering system, it is known as 100 crore or 1 arab.

The facts below give a sense of how large 1,000,000,000 (10^{9}) is in the context of time according to current scientific evidence:

- 10
^{9}seconds (1 gigasecond) equal 11,574 days, 1 hour, 46 minutes and 40 seconds (approximately 31.7 years, or 31 years, 8 months, 8 days). - About 10
^{9}minutes ago, the Roman Empire was flourishing and Christianity was emerging. (10^{9}minutes is roughly 1,901 years.) - About 10
^{9}hours ago, modern human beings and their ancestors were living in the Stone Age (more precisely, the Middle Paleolithic). (10^{9}hours is roughly 114,080 years.) - About 10
^{9}days ago,*Australopithecus*, an ape-like creature related to an ancestor of modern humans, roamed the African savannas. (10^{9}days is roughly years.) - About 10
^{9}months ago, dinosaurs walked the Earth during the late Cretaceous. (10^{9}months is roughly years.) - About 10
^{9}years—a gigaannus—ago, the first multicellular eukaryotes appeared on Earth. - About 10
^{9}decades ago, galaxies began to appear in the early Universe which was then 3.799 billion years old. (10^{9}decades is exactly years.) - The universe is thought to be about 13.8 × 10
^{9}years old.^{[6]}

- 10
^{9}inches is 15,783 miles (25,400 km), more than halfway around the world and thus sufficient to reach any point on the globe from any other point. - 10
^{9}metres (called a gigametre) is almost three times the distance from the Earth to the Moon. - 10
^{9}kilometres (called a terametre) is over six times the distance from the Earth to the Sun.

- A billion square inches could make a square about one half mile on a side.
- A bolt of finely woven 1000-TC bed sheet linen with a billion thread crossings would have an area of 40 square metres (48 sq yd), comparable to the floor area of a motel unit.

- There are one billion cubic millimetres in a cubic metre, and a billion cubic metres in a cubic kilometre.
- A billion grains of table salt or granulated sugar would occupy a volume of about 2.5 cubic feet (0.071 m
^{3}). - A billion cubic inches would be a volume comparable to a large commercial building slightly larger than a typical supermarket.

- Any object that weighs one billion kilograms (2.2×10
^{9}lb) would weigh about as much as 5,525 empty Boeing 747-400s. - A cube of iron that weighs one billion pounds (450,000,000 kg) would be 38.62 metres (126.7 ft) on each side.

- As of July 2016, Apple has sold one billion iPhones.
^{[7]}This makes the iPhone one of the most successful product lines in history, surpassing the PlayStation and the Rubik's Cube. - As of July 2016, Facebook has 1.71 billion users.
^{[8]}

- A small mountain, slightly larger than Stone Mountain in Georgia, United States, would weigh (have a mass of) a billion tons.
- There are billions of worker ants in the largest ant colony in the world,
^{[9]}which covers almost 4,000 miles (6,400 km) of the Mediterranean coast. - In 1804, the world population was one billion.

**A** is a cube; **B** consists of 1000 cubes the size of cube *A*, **C** consists of 1000 cubes the size of cube *B*; and **D** consists of 1000 cubes the size of cube *C*. Thus there are *A*-sized cubes in *C*; and 1,000,000,000 *A*-sized cubes in *D*.

**1,000,000,007**- smallest prime number with 10 digits.^{[10]}**1,000,006,281**- smallest triangular number with 10 digits and the 44,721st triangular number.**1,000,014,129**- smallest ten-digit square.**1,023,456,789**- smallest pandigital number in base 10.**1,026,753,849**- smallest pandigital square that includes 0.**1,073,741,824**- 2^{30}**1,111,111,111**- repunit, also a special number relating to the passing of Unix time.**1,129,760,415**- 23rd Motzkin number.^{[11]}**1,134,903,170**- 45th Fibonacci number.**1,162,261,467**- 3^{19}**1,220,703,125**- 5^{13}**1,232,922,769**- Centered hexagonal number.**1,280,000,000**- 20^{7}**1,234,567,890**- pandigital number with the digits in order.**1,311,738,121**- 25th Pell number.^{[12]}**1,382,958,545**- 15th Bell number.^{[13]}**1,406,818,759**- 30th Wedderburn-Etherington number.^{[14]}**1,427,647,786**- Population of the People's Republic of China in 2018.^{[15]}^{[16]}**1,475,789,056**- 14^{8}**1,631,432,881**- Triangular square number.**1,673,196,525**- Lowest common multiple of the odd integers from 1 to 25**1,787,109,376**- 1-automorphic number^{[17]}**1,836,311,903**- 46th Fibonacci number.**1,882,341,361**- The smallest prime whose reversal is both square (40391^{2}) and triangular (triangular of 57121).**1,977,326,743**- 7^{11}

**2,038,074,743**- 100,000,000th prime number**2,147,483,647**- 8th Mersenne prime and the largest signed 32-bit integer.**2,147,483,648**- 2^{31}**2,176,782,336**- 6^{12}**2,214,502,422**- 6th primary pseudoperfect number.^{[18]}**2,357,947,691**- 11^{9}**2,562,890,625**- 15^{8}**2,971,215,073**- 11th Fibonacci prime (47th Fibonacci number).

**3,166,815,962**- 26th Pell number.^{[12]}**3,192,727,797**- 24th Motzkin number.^{[11]}**3,323,236,238**- 31st Wedderburn-Etherington number.^{[14]}**3,405,691,582**- hexadecimal CAFEBABE; used as a placeholder in programming.**3,405,697,037**- hexadecimal CAFED00D; used as a placeholder in programming.**3,486,784,401**- 3^{20}**3,735,928,559**- hexadecimal DEADBEEF; used as a placeholder in programming.**3,735,929,054**- hexadecimal DEADC0DE; used as a placeholder in programming.

**4,294,967,291**- Largest prime 32-bit unsigned integer.**4,294,967,295**- Maximum 32-bit unsigned integer (FFFFFFFF_{16}), perfect totient number, product of the first five prime Fermat numbers through .**4,294,967,296**- 2^{32}**4,294,967,297**- , the first composite Fermat number.**4,500,000,000**- Approximate age of the Earth in years**4,807,526,976**- 48th Fibonacci number.

**5,159,780,352**- 12^{9}**5,354,228,880**- superior highly composite number, smallest number divisible by all the numbers 1 through 24**5,784,634,181**- 13th alternating factorial.^{[19]}

**6,103,515,625**- 5^{14}**6,210,001,000**- only self-descriptive number in base 10.**6,227,020,800**- 13!**6,975,757,441**- 17^{8}**6,983,776,800**- 15th colossally abundant number,^{[20]}15th superior highly composite number^{[21]}

**7,007,009,909**- smallest number in base 10 to take 100 iterations to form a palindrome^{[22]}**7,464,000,000**- Estimated population of the Earth in 2016 according to Worldometers^{[23]}**7,645,370,045**- 27th Pell number.^{[12]}**7,778,742,049**- 49th Fibonacci number.**7,862,958,391**- 32nd Wedderburn-Etherington number.^{[14]}

**8,212,890,625**- 1-automorphic number^{[17]}**8,589,869,056**- 6th perfect number.^{[24]}**8,589,934,592**- 2^{33}

**9,043,402,501**- 25th Motzkin number.^{[11]}**9,814,072,356**- largest square pandigital number, largest pandigital pure power.**9,876,543,210**- largest number without repeated digits in base 10.**9,999,999,967**- greatest prime number with 10 digits^{[25]}**9,999,999,999**- largest 10-digit number

**^**"Yard".*Investopedia*. Retrieved 2017.**^**"figures".*The Economist Style Guide*(11th ed.). The Economist. 2015. ISBN 9781782830917.**^**"6.5 Abbreviating 'million' and 'billion'".*English Style Guide: A handbook for authors and translators in the European Commission*(PDF) (8th ed.). European Commission. 3 November 2017. p. 32.**^**"How many is a billion?".*OxfordDictionaries.com*. Retrieved 2017.**^**"billion,thousand million,milliard".*Google Ngram Viewer*. Retrieved 2017.**^**"Cosmic Detectives".*European Space Agency*. 2 April 2013.**^**Panken, Eli (27 July 2016). "Apple Announces It Has Sold One Billion iPhones".*NBCNews.com*. Retrieved 2017.**^**Seethamaram, Deep (27 July 2016). "Facebook Posts Strong Profit and Revenue Growth".*The Wall Street Journal*. Retrieved 2017.**^**Burke, Jeremy (16 June 2015). "How the World Became A Giant Ant Colony".*Atlas Obscura*. Retrieved 2017.**^**Sloane, N. J. A. (ed.). "Sequence A003617 (Smallest n-digit prime)".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation.- ^
^{a}^{b}^{c}Sloane, N. J. A. (ed.). "Sequence A001006 (Motzkin numbers)".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. - ^
^{a}^{b}^{c}Sloane, N. J. A. (ed.). "Sequence A000129 (Pell numbers)".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. **^**Sloane, N. J. A. (ed.). "Sequence A000110 (Bell or exponential numbers)".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation.- ^
^{a}^{b}^{c}Sloane, N. J. A. (ed.). "Sequence A001190 (Wedderburn-Etherington numbers)".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. **^**""World Population prospects - Population division"".*population.un.org*. United Nations Department of Economic and Social Affairs, Population Division. Retrieved 2019.**^**""Overall total population" - World Population Prospects: The 2019 Revision" (xslx).*population.un.org*(custom data acquired via website). United Nations Department of Economic and Social Affairs, Population Division. Retrieved 2019.- ^
^{a}^{b}Sloane, N. J. A. (ed.). "Sequence A003226 (Automorphic numbers)".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. Retrieved . **^**Sloane, N. J. A. (ed.). "Sequence A054377 (Primary pseudoperfect numbers)".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation.**^**Sloane, N. J. A. (ed.). "Sequence A005165 (Alternating factorials)".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation.**^**Sloane, N. J. A. (ed.). "Sequence A004490 (Colossally abundant numbers)".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation.**^**Sloane, N. J. A. (ed.). "Sequence A002201 (Superior highly composite numbers)".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation.**^**"Reversal-Addition Palindrome Test on 7007009909". July 9, 2021.**^**"World Population by Year". January 1, 2017.**^**Sloane, N. J. A. (ed.). "Sequence A000396 (Perfect numbers)".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation.**^**"Greatest prime number with 10 digits".*Wolfram Alpha*. Retrieved 2017.

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