100,000,000

100,000,000 (one hundred million) is the natural number following 99,999,999 and preceding 100,000,001.

"100 million" redirects here. For the song by Birdman, see 100 Million.

100000000
List of numbers — Integers ← 10^0 10^1 10^2 10^3 10^4 10^5 10^6 10^7 10^8 10^9
Cardinal	One hundred million
Ordinal	100000000th (one hundred millionth)
Factorization	2^8 × 5^8
Greek numeral	${\displaystyle {\stackrel {\alpha }{\mathrm {M} }}}$
Roman numeral	C
Binary	1011111010111100001000000002
Ternary	202220111120122013
Quaternary	113311320100004
Quinary	2011000000005
Senary	135312025446
Octal	5753604008
Duodecimal	295A645412
Hexadecimal	5F5E10016
Vigesimal	1B5000020
Base 36	1NJCHS36

In scientific notation, it is written as 10⁸.

East Asian languages treat 100,000,000 as a counting unit, significant as the square of a myriad, also a counting unit. In Chinese, Korean, and Japanese respectively it is (simplified Chinese: 亿; traditional Chinese: 億; pinyin: yì) (or Chinese: 萬萬; pinyin: wànwàn in ancient texts), eok (억/億) and oku (億). These languages do not have single words for a thousand to the second, third, fifth power, etc.

Selected 9-digit numbers (100,000,001–999,999,999)

100,000,001 to 199,999,999

• 100,000,007 – smallest nine digit prime[1]
• 100,005,153 – smallest triangular number with 9 digits and the 14,142nd triangular number
• 102,334,155 – Fibonacci number
• 105,413,504 – 14⁷
• 107,890,609 – Wedderburn-Etherington number[2]
• 111,111,111 – repunit, square root of 12345678987654321
• 111,111,113 – Chen prime, Sophie Germain prime, cousin prime.
• 123,456,789 – smallest zeroless base 10 pandigital number
• 129,140,163 – 3¹⁷
• 129,644,790 – Catalan number[3]
• 134,217,728 – 2²⁷
• 139,854,276 – the smallest pandigital square
• 142,547,559 – Motzkin number[4]
• 165,580,141 – Fibonacci number
• 167,444,795 – cyclic number in base 6
• 170,859,375 – 15⁷
• 179,424,673 – 10,000,000th prime number
• 190,899,322 – Bell number[5]

200,000,000 to 299,999,999

• 212,890,625 – 1-automorphic number[6]
• 214,358,881 – 11⁸
• 222,222,222 – repdigit
• 222,222,227 – safe prime
• 223,092,870 – the product of the first nine prime numbers
• 225,058,681 – Pell number[7]
• 225,331,713 – self-descriptive number in base 9
• 232,792,560 – superior highly composite number;[8] colossally abundant number;[9] the smallest number divisible by all the numbers 1 through 22
• 244,140,625 – 5¹²
• 253,450,711 – Wedderburn-Etherington number[2]
• 267,914,296 – Fibonacci number
• 268,402,687 – Carol number[10]
• 268,435,456 – 2²⁸
• 268,468,223 – Kynea number[11]
• 272,400,600 – the number of terms of the harmonic series required to pass 20
• 275,305,224 – the number of magic squares of order 5, excluding rotations and reflections
• 282,475,249 – 7¹⁰

300,000,000 to 399,999,999

• 333,333,333 – repdigit
• 367,567,200 – colossally abundant number,[12] superior highly composite number[13]
• 381,654,729 – the only polydivisible number that is also a zeroless pandigital number
• 387,420,489 – 3¹⁸, 9⁹ and in tetration notation ²9

400,000,000 to 499,999,999

• 400,763,223 – Motzkin number[4]
• 410,338,673 – 17⁷
• 429,981,696 – 12⁸
• 433,494,437 – Fibonacci prime
• 442,386,619 – alternating factorial[14]
• 444,444,444 – repdigit
• 477,638,700 – Catalan number[3]
• 479,001,599 – factorial prime[15]
• 479,001,600 – 12!

500,000,000 to 599,999,999

• 536,870,912 – 2²⁹
• 543,339,720 – Pell number[7]
• 554,999,445 – a Kaprekar constant for digit length 9 in base 10
• 555,555,555 – repdigit
• 596,572,387 – Wedderburn-Etherington number[2]

600,000,000 to 699,999,999

• 612,220,032 – 18⁷
• 666,666,666 – repdigit
• 644,972,544 – perfect cube, 3-smooth number

700,000,000 to 799,999,999

• 701,408,733 – Fibonacci number
• 715,827,883 – Wagstaff prime[16]
• 777,777,777 – repdigit
• 787,109,376– 1-automorphic number[6]

800,000,000 to 899,999,999

• 815,730,721 – 13⁸
• 888,888,888 – repdigit
• 893,871,739 – 19⁷

900,000,000 to 999,999,999

• 906,150,257 – smallest counterexample to the Polya conjecture
• 987,654,321 – largest zeroless pandigital number
• 999,961,560 – highest triangular number with 9 digits and the 44,720th triangular number
• 999,999,937 – largest 9-digit prime
• 999,999,999 – repdigit

References

1. Sloane, N. J. A. (ed.). "Sequence A003617 (Smallest n-digit prime)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 7 September 2017.
2. Sloane, N. J. A. (ed.). "Sequence A001190 (Wedderburn-Etherington numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-17.
3. Sloane, N. J. A. (ed.). "Sequence A000108 (Catalan numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-17.
4. Sloane, N. J. A. (ed.). "Sequence A001006 (Motzkin numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-17.
5. "Sloane's A000110 : Bell or exponential numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-17.
6. Sloane, N. J. A. (ed.). "Sequence A003226 (Automorphic numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2019-04-06.
7. Sloane, N. J. A. (ed.). "Sequence A000129 (Pell numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-17.
8. "Sloane's A002201 : Superior highly composite numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-17.
9. "Sloane's A004490 : Colossally abundant numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-17.
10. "Sloane's A093112 : a(n) = (2^n-1)^2 - 2". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-17.
11. "Sloane's A093069 : a(n) = (2^n + 1)^2 - 2". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-17.
12. "Sloane's A004490 : Colossally abundant numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-17.
13. "Sloane's A002201 : Superior highly composite numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-17.
14. "Sloane's A005165 : Alternating factorials". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-17.
15. "Sloane's A088054 : Factorial primes". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-17.
16. "Sloane's A000979 : Wagstaff primes". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-17.