| 释义 |
- In mathematics
- In geography
- In movies
- In sports
- In transportation
- In TV and radio
- In other fields
- See also
- References
- External links
{{example farm|date=March 2010}}{{Infobox number
| number = 199
| prime = 46th
}}199 (one hundred [and] ninety-nine) is the natural number following 198 and preceding 200. In mathematics- 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 prime 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({{sqrt|–d}}) has class number = 9.[1]
In geography- 199 Fremont Street is a Class A office tower in San Francisco's South of Market district
In movies- [https://www.imdb.com/title/tt1332471 199 Lives: The Travis Pastrana Story], a 2008 documentary on extreme-sports legend Travis Pastrana
In sports- Ryan Howard of the Philadelphia Phillies had a record 199 strikeouts in the 2007 Major League Baseball season
- Jordan 199 Formula One car during the 1999 season
- Travis Pastrana is a professional motorsports competitor and stunt performer riding under the number 199.
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- List of highways numbered 199
- United Nations Security Council Resolution 199
- United States Supreme Court cases, Volume 199
- Pennsylvania House of Representatives, District 199
References1. ^{{cite web|title=Tables of imaginary quadratic fields with small class number|website=numbertheory.org|url=http://www.numbertheory.org/classnos/}}
External links{{Commons category|199 (number)}}- [https://web.archive.org/web/20061002152820/http://athensohio.net/reference/number/199/ Number Facts and Trivia: 199]
- The Number 199
- Number Gossip: 199
- The Positive Integer 199
- Prime Curiosities: 199
- Virtual Science: 199
{{Integers|1}} 1 : Integers |