100
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Cardinal | 100 one hundred |
Ordinal | 100th hundredth (or, one hundredth) |
Numeral system | unary |
Factorization | |
Divisors | 1, 2, 4, 5, 10, 20, 25, 50, 100 |
Greek numeral | ρʹ |
Roman numeral | C |
Roman numeral (Unicode) | C, ⅽ |
Arabic | ١٠٠ |
Bengali | ১০০ |
Chinese numeral | 佰,百 |
Korean | 백 |
Devanagari | १०० |
Hebrew | ק (Kuf) |
Khmer | ១០០ |
Tamil | ௱, க00 |
Thai | ร้อย, ๑๐๐ |
prefixes | Hundred |
Binary | 1100100 |
Octal | 144 |
Duodecimal | 84 |
Hexadecimal | 64 |
100 (one hundred) (Roman numeral C, for centum) is the natural number following 99 and preceding 101.
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One hundred is the square of 10 (in scientific notation it is written as 102). The standard SI prefix for a hundred is "hecto-".
One hundred is the basis of percentages (per cent meaning "per hundred" in Latin), with 100% being a full amount.
It is the sum of the first nine prime numbers, as well as the sum of four pairs of prime numbers (47 + 53, 17 + 83, 3 + 97, 41 + 59), and the sum of the cubes of the first four integers (100 = 13 + 23 + 33 + 43). Also, 26 + 62 = 100, thus 100 is a Leyland number.
One hundred is also an 18-gonal number. It is divisible by the number of primes below it, 25 in this case. But it can not be expressed as the difference between any integer and the total of coprimes below it, making it a noncototient. However, it can be expressed as a sum of some of its divisors, making it a semiperfect number.
100 is a Harshad number in base 10, and also in base 4, and in that base it is a self-descriptive number.
There are exactly 100 prime numbers whose digits are in strictly ascending order. (e.g. 239, 2357 etc.)
100 is the smallest number whose common logarithm is a prime number.
The atomic number of fermium is 100.
On the Celsius scale, 100 degrees is the boiling temperature of pure water at sea level.
The United States Senate has 100 Senators.
Most of the world's currencies are divided into 100 subunits; for example, one euro is one hundred cents and one pound sterling is one hundred pence.
The U.S. hundred-dollar bill has Benjamin Franklin's portrait; the "Benjamin" is the largest U.S. bill in print. American savings bonds of $100 have Thomas Jefferson's portrait, while American $100 treasury bonds have Andrew Jackson's portrait.
One hundred is also:
When a TV series reaches 100 episodes, it is generally considered viable for syndication. (For shows picked up midseason, this point is generally reached during a prime time series' 5th season).