93 (ninety-three) is the natural number following 92 and preceding 94.
[edit] In mathematics
Ninety-three is the twenty-eighth distinct biprime and the ninth of the form (3.q). The aliquot sum of 93 is 35 within the aliquot sequence (93,35,13,1,0) 93 being the fourth composite number in the 13-aliquot tree. 93 is the first number in the third triplet of three consecutive distinct biprimes, 93, 94 and 95.
Since its two prime factors, 3 and 31 are both Gaussian primes, this means that 93 is a Blum integer.
Given 93 the Mertens function returns 0.
There are 93 solutions to Znám's problem for length 8.
93 is a repdigit in base 5 (333).
[edit] In science
In astronomy,
- Messier object M93, a magnitude 6.5 open cluster in the constellation Puppis
- The New General Catalogue object NGC 93, a magnitude 13.3 spiral galaxy in the constellation Andromeda
- The Saros number of the solar eclipse series which began on August 9, 29 BC and ended on 1287 October. The duration of Saros series 93 was 1316.2 years, and it contained 74 solar eclipses.
- The Saros number of the lunar eclipse series which began on 291 May and ended on 1571 July. The duration of Saros series 93 was 1280.1 years, and it contained 72 lunar eclipses.
[edit] In other fields
Ninety-three is also:
- The year AD 93, 93 BC, or 1993.
- Ninety-Three (Quatrevingt-treize), a novel concerning the French Revolution by Victor Hugo
- American Interstate 93, a freeway that runs from Massachusetts to Vermont, and U.S. Route 93, a north-south highway in the Western United States, extending between the Canadian border in Montana, and Wickenburg, Arizona.
- The code for international direct dial phone calls to Afghanistan.
- The number of United Airlines Flight 93, which crashed in Pennsylvania, USA on September 11, 2001.
- A greeting among Thelemites, 93 is the numerological value of Thelema (Will) and Agape (Love) in Greek letters.
- One of two ISBN Group Identifiers for books published in India.
- The number of the French department Seine-Saint-Denis, and as such used by many French gangsta rappers and those emulating their speech.
- Babia 93, an album from a Pakistani pop singer Sajjad Ali
- London's 93 Feet East music venue
- Los Angeles 93 KHJ radio
- STS-93 was the mission of the Space Shuttle Columbia launched July 23, 1999.
- Tales From the Crypt ran on HBO for 93 episodes from 1989 - 1996.
- The sun is an est. 93 million miles away
- The 93rd United States Congress (1973 to 1975) was in session during President Richard Nixon's resignation in August 1974
- William Shakespeare's Sonnet 93
- Rhode Island Senator Theodore Francis Green (1867-1966) was 93 when he retired, and at the time, the oldest man ever to serve in the United States Congress
- Strom Thurmond, among the longest-serving senators in Congress history, won reelection at 93.
- The Saab 93, a car produced from 1950-1960
- The Saab 9-3, a car produced from 1998-Present, designed to replace the Saab 900.
[edit] In sports
[edit] Current National Hockey League players
[edit] See also
List of highways numbered 93
[edit] External links
