83 (number)

← 82 83 84 →
←80818283848586878889→ List of numbers Integers ←0102030405060708090→
Cardinal	eighty-three
Ordinal	83rd (eighty-third)
Factorization	prime
Prime	23rd
Divisors	1, 83
Greek numeral	ΠΓ´
Roman numeral	LXXXIII
Binary	10100112
Ternary	100023
Senary	2156
Octal	1238
Duodecimal	6B12
Hexadecimal	5316

83(eighty-three) is thenatural numberfollowing82and preceding84.

In mathematics

83is:

• the sum of three consecutive primes (23 + 29 + 31).
• the sum of five consecutive primes (11 + 13 + 17 + 19 + 23).
• the 23rdprime number,following79(of which it is also acousin prime) and preceding89.
• aSophie Germain prime.
• asafe prime.
• aChen prime.
• anEisenstein primewith no imaginary part and real part of the form 3n− 1.
• ahighly cototient number.
• the number ofprimesthat areright-truncatable.
• asuper-prime,because 23 is prime.

In science

Chemistry

• Theatomic numberofbismuth(Bi)

Astronomy

• Messier object M83,amagnitude8.5spiral galaxyin theconstellationHydra,also known as theSouthern Pinwheel Galaxy
• TheNew General CatalogueobjectNGC 83,a magnitude 12.3elliptical galaxyin the constellationAndromeda

In religion

Judaism

• When someone reaches 83 they may celebrate asecond bar mitzvah

In music

• M83is the debut album of the French electronic music groupM83
• 83 is a song written byJohn Mayerin theRoom for Squaresalbum.
• 83 is a Quebec hip-hop group
• 83 is a song produced by Maximono

In film and television

• Gypsy 83is 2001 film directed byTodd Stephens
• Class of '83is 2004 film directed byKurt E. Soderling
• 83 Hours 'Til Dawnis a 1990 film directed byDonald Wrye
• 83 is the highest UHF channel on oldertelevisionsmade before the late 1970s (newer televisions only go up to channel 69, due to the frequency spectrum previously assigned to channels 70–83 in the United States being reassigned tocellular phoneservice there in the late 1970s-early 1980s). As an example, the television station CIVIC-TV managed by theJames Woodscharacter Max Renn in the 1983 filmVideodromewas on Channel 83.

In other fields

See also:List of highways numbered 83

TI-83calculator

Eighty-threeis also:

• The year AD83,83 BC,or 1983
• TheTI-83 series,graphingcalculatorsfromTexas Instruments
• Konsept83 is aGreekgraphic design team.
• The model number ofBell XP-83
• The number of theFrench departmentVar
• TheISBNGroup Identifier for books published inPoland
• The eighth letter of the alphabet is H and the third letter is C, thus 83 stands for "Heil Christ," a greeting sometimes (not always) used by racist organizations that consider themselves also to be Christian.This symbology is also known to be used by many non-racistChristians and non-denominational Churches.
• Anemoticonbased on:3 with wide-open eyes.