100
Template:Redirect Template:Infobox number 100 or one hundred (Roman numeral: C)Template:Refn is the natural number following 99 and preceding 101.
In mathematicsEdit
100 is the square of 10 (in scientific notation it is written as 102). The standard SI prefix for a hundred is "hecto-".
100 is the basis of percentages ({{#invoke:Lang|lang}} meaning "by the hundred" in Latin), with 100% being a full amount.
100 is a Harshad number in decimal, and also in base-four, a base in-which it is also a self-descriptive number.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref><ref>Template:Cite OEIS</ref>
100 is the sum of the first nine prime numbers, from 2 through 23.<ref>Template:Cite OEIS</ref> It is also divisible by the number of primes below it, 25.<ref>Template:Cite OEIS</ref>
100 cannot be expressed as the difference between any integer and the total of coprimes below it, making it a noncototient.<ref>Template:Cite OEIS</ref>
100 has a reduced totient of 20, and an Euler totient of 40.<ref>Template:Cite OEIS</ref><ref>Template:Cite OEIS</ref> A totient value of 100 is obtained from four numbers: 101, 125, 202, and 250.
100 can be expressed as a sum of some of its divisors, making it a semiperfect number.<ref>Template:Cite OEIS</ref> The geometric mean of its nine divisors is 10.
100 is the sum of the cubes of the first four positive integers (100 = 13 + 23 + 33 + 43).<ref>Template:Cite OEIS</ref> This is related by Nicomachus's theorem to the fact that 100 also equals the square of the sum of the first four positive integers: Template:Nowrap.<ref>Template:Cite OEIS</ref>
100 = 26 + 62, thus 100 is the seventh Leyland number.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> 100 is also the seventeenth Erdős–Woods number, and the fourth 18-gonal number.<ref>Template:Cite OEIS</ref><ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>
It is the 10th star number<ref>Template:Cite OEIS</ref> (whose digit sum also adds to 10 in decimal).
In historyEdit
- In medieval contexts, it may be described as the short hundred or five score in order to differentiate the English and Germanic use of "hundred" to describe the long hundredTemplate:Refn of six score or 120.
In moneyEdit
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.
By specification, 100 euro notes feature a picture of a Rococo gateway on the obverse and a Baroque bridge on the reverse.
The United States one-hundred-dollar bill has Benjamin Franklin's portrait; this "Benjamin" is the largest American banknote in circulation.
In other fieldsEdit
Computers & SoftwareEdit
- The HTTP status code indicating that the client should continue with its request.
- 100 Mbps Ethernet: Fast Ethernet standard.
Science & MeasurementEdit
- 100°C: The boiling point of water under standard atmospheric pressure.
- 100 centimetres = 1 meter: Used in metric measurements.
- 100 is the atomic number of Fermium (Fm): A synthetic chemical element in the periodic table.
SportsEdit
- 100-meter sprint: One of the most prestigious Olympic events.
CultureEdit
- 100 emoji 💯: Is commonly used to represent something excellent or perfect.
See alsoEdit
- 1 vs. 100
- AFI's 100 Years...
- Hundred (county division)
- Hundred (word)
- Hundred Days
- Hundred Years' War
- List of highways numbered 100
- Top 100
- Greatest 100
ReferencesEdit
- Wells, D. The Penguin Dictionary of Curious and Interesting Numbers London: Penguin Group. (1987): 133
External linksEdit
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- Template:Cite EB1911
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