97 (number)
From Wikipedia, the free encyclopedia
97 (ninety-seven) is the natural number following 96 and preceding 98.
| Cardinal | 97 ninety-seven |
| Ordinal | 97th ninety-seventh |
| Factorization | prime |
| Divisors | 1, 97 |
| Roman numeral | XCVII |
| Binary | 1100001 |
| Hexadecimal | 61 |
Contents |
[edit] In mathematics
97 is the 25th prime number (the largest two-digit prime number in base 10), following 89 and preceding 101. 97 is a Proth prime as it is 3 × 25 + 1.
The numbers 97, 907, 9007, 90007 and 900007 are happy primes. However, 9000007 (read as nine million seven) is composite and has the factorisation 277 × 32491.
97 is the tenth member of the Mian-Chowla sequence.
97 is the smallest factor of one more than the product of the first twenty-five terms of the Euclid-Mullin sequence, making it the twenty-sixth term.
Since there is no integer that added to its own digits adds up to 97, 97 is a self number in base 10.
[edit] In astronomy
- Messier object M97, a magnitude 12.0 planetary nebula in the constellation Ursa Major, also known as the Owl Nebula
- The New General Catalogue object NGC 97, an elliptical galaxy in the constellation Andromeda
- The Saros number of
- the solar eclipse series which began on 123 June 11 and ended on 1385 July 8. The duration of Saros series 97 was 1262.1 years, and it contained 71 solar eclipses.
- the lunar eclipse series which began on 425 March 20 and ended on 1723 May 20. The duration of Saros series 97 was 1298.1 years, and it contained 73 lunar eclipses.
[edit] In other fields
Ninety-seven is:
- The year AD 97, 97 BC, or 1997.
- The atomic number of berkelium, an actinide.
- 97 is the number of ancient Pyramids known to exist in Egypt.
- The designation of Interstate 97, a freeway in Maryland, the shortest Interstate freeway in the continental United States
- British Columbia Highway 97 is the longest continuously-numbered route in the province, from the Canada/U.S. border at Osoyoos to the British Columbia/Yukon border
- U.S. Route 97 is a United States highway from Weed, California, to Okanogon County, Washington
- OC Transpo Route 97, A Transitway bus route in Ottawa, Ontario
- The 97th United States Congress met during the Ronald Reagan administration, from January 1981 to January 1983
- The 10-97 police code means "arrived on the scene"
- STS-97 Space Shuttle Endeavour mission launched November 30, 2000
- The 97th Infantry Division was a unit of the United States Army in World War I and World War II.
- Madden NFL 97 was the first John Madden NFL American football game to be created in the 32-bit gaming era.
- 97 radio stations, such as Hot 97, New York City and 97X, Tampa, Florida
[edit] In music
- A song Baby Boy / Saturday Night '97 by Whigfield
- The number of the Southern Railway `train in the Wreck of the Old 97, a ballad recorded by numerous artists, including Flatt and Scruggs, Woody Guthrie, Johnny Cash, Nine Pound Hammer, and Hank Snow.
- The Old 97's are an alt-country band, which took their name from the song "The Wreck of the Old 97"
- A song by Alkaline Trio off their self titled album
[edit] In sports
- The number of Kurt Busch's NASCAR Ford when he won the 2004 NEXTEL Cup Series championship.
- Don Larsen pitched a perfect game in Game 5 of the 1956 World Series on October 8, 1956. He threw a total 97 pitches
- The 2001 World Series between theArizona Diamondbacks and the New York Yankees was the 97th Fall Classic
