83 (number)

In mathematics

• the sum of three consecutive primes.
• the sum of five consecutive primes.
• the 23rd prime number, following 79 and preceding 89.
• a Sophie Germain prime.
• a safe prime.
• a Chen prime.
• an Eisenstein prime with no imaginary part and real part of the form 3n − 1.
• a highly cototient number.

  In science

Chemistry

• The atomic number of bismuth

  Astronomy

• Messier object M83, a magnitude 8.5 spiral galaxy in the constellation Hydra, also known as the Southern Pinwheel Galaxy
• The New General Catalogue object NGC 83, a magnitude 12.3 elliptical galaxy in the constellation Andromeda

  In religion

Judaism

• When someone reaches 83 they may celebrate a second bar mitzvah

  In music

• M83 is the debut album of the French electronic music group M83
• 83 is a song written by John Mayer in the Room for Squares album.
• 83 is a Quebec hip-hop group
• 83 is a song produced by Maximono

  In film and television

• Gypsy 83 is 2001 film directed by Todd Stephens
• Class of '83 is 2004 film directed by Kurt E. Soderling
• 83 Hours 'Til Dawn is a 1990 film directed by Donald Wrye
• 83 is the highest UHF channel on older televisions made before the late 1970s. As an example, the television station CIVIC-TV managed by the James Woods character Max Renn in the 1983 film Videodrome was on Channel 83.

  In other fields

• The year AD 83, 83 BC, or 1983
• The TI-83 series, graphing calculators from Texas Instruments
• Konsept83 is a Greek graphic design team.
• The model number of Bell XP-83
• The number of the French department Var
• The ISBN Group Identifier for books published in Poland
• The eighth letter of the alphabet is H and the third letter is C, thus 83 stands for "Heil Christ," a greeting sometimes used by racist organizations that consider themselves also to be Christian. This symbology is also known to be used by many non-racist Christians and non-denominational Churches.
• An emoticon based on :3 with wide-open eyes.