199 (number)
199 (one hundred [and] ninety-nine) is the natural number following 198 and preceding 200.
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| Cardinal | one hundred ninety-nine | |||
| Ordinal | 199th (one hundred ninety-ninth) | |||
| Factorization | prime | |||
| Prime | 46th | |||
| Greek numeral | ΡϞΘ´ | |||
| Roman numeral | CXCIX | |||
| Binary | 110001112 | |||
| Ternary | 211013 | |||
| Octal | 3078 | |||
| Duodecimal | 14712 | |||
| Hexadecimal | C716 | |||
In mathematics
- 199 is the 46th prime number
- 199 is an odd number
- 199 is a centered triangular number
- 199 is a centered 33-gonal number
- 199 is a deficient number, as its aliquot sum, 1, is less than 199
- 199 is a Lucas number
- 199 is a Chen prime
- 199 is a permutable prime which can have its digits switched, and create another prime number (991)
- 199 is a twin prime with 197
- 199 is the sum of three consecutive primes: 61 + 67 + 71
- 199 is the sum of five consecutive primes: 31 + 37 + 41 + 43 + 47
- 199 is the fourth part of a prime quadruplet: 191, 193, 197, 199
- 199 is a square-free number
- 199 is an odious number
- 199 is the smallest natural number that takes more than two revolutions to get a Full Digital Root. Dt(199) = 1
- 199 is the smallest positive integer d such that the imaginary quadratic field Q(√–d) has class number = 9.[1]
- 199 is first prime number in a sequence of 10 consecutive prime numbers with common difference 210 (Tao and Green 2008; see R.Taschner "Die Farben der Quadratzahlen" p. 147) for k=10 the ten primes are 199+j*210; j=0 to 9; 199;199+210=409;409+210=619...1879+210=2089.
In geography
- 199 Fremont Street is a Class A office tower in San Francisco's South of Market district
In movies
- 199 Lives: The Travis Pastrana Story, a 2008 documentary on extreme-sports legend Travis Pastrana
In transportation
- London Buses route 199
- Arado Ar 199 was a floatplane, a low-wing monoplane, designed in 1938, of which two prototypes were built
In TV and radio
- 199 Park Lane is a 1965 British television soap opera on the BBC
In other fields
199 is also:
- The year AD 199 or 199 BC
- The atomic number of an element temporarily called Unennennium
- Minuscule 199 is a Greek minuscule manuscript of the New Testament, on parchment
- 199 Byblis is a large main belt asteroid
See also
References
- "Tables of imaginary quadratic fields with small class number". numbertheory.org.
External links
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Wikimedia Commons has media related to 199 (number). |
- Number Facts and Trivia: 199
- The Number 199
- Number Gossip: 199
- The Positive Integer 199
- Prime Curiosities: 199
- Virtual Science: 199
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