Hundred
Hundred | |
---|---|
100 | |
presentation | |
Roman | C. |
dual | 110 0100 |
Octal | 144 |
Duodecimal | 84 |
Hexadecimal | 64 |
Morse code | - - - - - - - - - - - - - - |
Mathematical properties | |
sign | positive |
parity | straight |
Factorization | |
Divider | 1, 2, 4, 5, 10, 20, 25, 50, 100 |
The hundred (100), also called one hundred , is the natural number between 99 and 101. It is an even and a square number .
Linguistic
The German numeral Hundert or Hundred is, like all numerals, written in upper or lower case, depending on the context. It was formed from the Indo-European root * -k'm.tom , which was probably originally a formation from * dek'm. [T] (ten) and meant "ten tens". The ending comes from a Germanic basic word raþa , which means "number" (cf. English hundred ). There is still the plural hundreds of the numerical word hundred , but the number is declinable in combinations ( one hundred , two hundred , etc.).
The Indo-European original word is also found in Greek ἑκατόν (hekaton) and Latin centum (including the Roman numeral C), which found their way into the German language as prefixes hecto- (hundredfold) and zenti- (hundredth part). The currency denomination cent comes from the Latin centum , which not only denotes the hundredth part of the basic currency in German (see also Centesimo ).
The hundredweight , which consists of 100 pounds, is also derived from the Latin root.
mathematics
The one hundred is particularly important in the decimal system , as it is a "round" number as the second power of 10 (10²). The in elementary school usually auswendigzulernende "small multiplication table " includes multiplications to 10 x 10 = 100th
100 is also the sum of the first 9 prime numbers , the first four cube numbers (1³ + 2³ + 3³ + 4³ = 100) and a Harshad number .
In practice, it is primarily relevant to express size relationships; the reference to a size is usually expressed in hundredths of a percent .
Natural sciences
- Anders Celsius defined 0 ° as the melting point and 100 ° as the boiling point of water for his temperature scale.
- In the periodic table of the elements , 100 is the atomic number of fermium .
- The class of centipedes is a subclass of millipedes in zoology . Centipedes have 15 to 191 pairs of legs.
History and society
The hundreds as the one hand, "round", on the other hand the life of a human-border number in a social context often synonymous with a particularly long time or a large amount, hectograph ( "One hundred (times) scription") z. B. was called the usual duplication process before the invention of xerocopy .
- A hundred is a military or police unit with a hundred or about a hundred members.
- The Anglo-French conflict between 1337 and 1453 is called the Hundred Years War .
- The Centennial Calendar was a famous compilation of weather forecasts in the 17th century by Mauritius Knauer .
- The Hundred Regiments Offensive, or Battle of the Hundred Regiments, was a large-scale campaign by the Chinese Red Army against the Imperial Japanese Army in 1940.
- The Hundred Flower Movement was an event leading up to the Chinese Cultural Revolution .
- Hundred Flowers , alternative political magazine (1972)
literature
- One hundred years of loneliness is a novel by the Colombian author Gabriel García Márquez , for which he received the 1982 Nobel Prize in Literature.
Mythology and religion
- In Greek mythology there are three legendary beings with a hundred arms each, the Hekatoncheiren and the giant Argos , who was supposed to guard Io with his hundred eyes , from which the expression Argus eyes is derived.
- Hecatomb was called a sacrifice of 100 cattle by the ancient Greeks, later the term was generally used for larger animal sacrifices, in ancient Rome even a month ( Hecatombaon ) was named after such animal sacrifices.
astronomy
The asteroid (513) Centesima was named after the number one hundred .