88 (number)

88 is the natural number following 87 and preceding 89.

Cardinal	eighty-eight
Ordinal	88th (eighty-eighth)
Factorization
Divisors	2, 4, 8, 11, 22, 44
Roman numeral	LXXXVIII
Binary	01011000
Hexadecimal	58

In mathematics

Eighty-eight is a symmetrical or palindromic number, a primitive semiperfect number and an untouchable number. It is also a 16-gonal number.

In astronomy

• The number of constellations in the sky as defined by the International Astronomical Union
• Messier object M88, a magnitude 11.0 spiral galaxy in the constellation Coma Berenices
• The New General Catalogue object NGC 88 , a spiral galaxy in the constellation Phoenix, and a member of Robert's Quartet
• The Saros number of the solar eclipse series which began on -246 October 6 and ended on 1233 March 12. The duration of Saros series 88 was 1478.4 years, and it contained 83 solar eclipses. Further, the Saros number of the lunar eclipse series which began on 38 July 5 and ended on 1336 August 23. The duration of Saros series 88 was 1298.1 years, and it contained 73 lunar eclipses.

In other fields

Eighty-eight is also:

• The atomic number of radium
• the number of keys on a piano
• in the title of the songs:
  • Rocket 88
  • 88 lines about 44 women is a song by the musical group The Nails.
  • 88 by the Canadian punk band Sum 41 on their 2004 album, Chuck.
• the model number of Oldsmobile Eighty-Eight, AGM-88 HARM
• the caliber of the 88 mm anti-aircraft gun used in World War II, commonly known as 88 (acht-acht in German)
• the number of the French department Vosges
• the designation of two roads named Interstate 88, a freeway in Illinois and a freeway in New York
• the town of Eighty Eight, Kentucky
• used
  • in sexual parlance to describe oral sex performed twice (ate twice).
  • in online chatting by Chinese people when saying "bye bye", since the number 8 in Chinese is pronounced "ba"
  • in neo-nazi circles as a code word for Heil Hitler, H being the 8th letter in the alphabet.
  • in amateur radio for "Love and kisses",
• in Star Wars, part of the name of the four IG-88 robots
• the ISBN Group Identifier for books published in Italy and Switzerland
• in miles per hour, the speed the DeLorean must attain in order to travel in time, in the Back to the Future trilogy.
• the number of floors of Petronas Towers, as of 2005 the world's tallest twin buildings.
• the year AD 88, 88 BC, or 1988.