86 (number)

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86 (eighty-six) is the natural number following 85 and preceding 87.


Cardinal 86
eighty-six
Ordinal 86th
eighty-sixth
Factorization 2 \cdot 43
Divisors 1, 2, 43, 86
Roman numeral LXXXVI
Binary 01010110
Hexadecimal 56

[edit] In mathematics

86 is a nontotient, a noncototient, a happy number, and a self number. It appears in the Padovan sequence, preceded by the terms 37, 49, 65 (it is the sum of the first two of these).

86 is a repdigit in base 6 (222).

[edit] In astronomy

[edit] In other fields

Intel 8086
Intel 8086

Eighty-six is also:

  • the atomic number of radon
  • the model number of F-86 Sabre and Ilyushin Il-86 aircraft
  • the numerical representation of a "lock-out" protective relaying function used in electrical circuit protection schemes.
  • the model number of CPM-86 operating system
  • part of the model number of the X86 microprocessors
  • generally used in restaurant or foodservice environments when a specific item is no longer available. For example, "86 baked haddock", or "the mussels have been 86'ed", or in a bar when you may have drunk too much and can never come back.
  • used as a verb, to "eighty-six" means to "ignore" or "get rid of". Suggested theories of the source of this usage include:
    • Possibly a reference to article 86 of the New York state liquor code which defines the circumstances in which a bar patron should be refused service or "86ed".
    • Another theory has it that this is rhyming slang for "nix." Interestingly, this seems to be an American coinage, unusual for rhyming slang.[1]
    • Others have suggested that this usage originated from the famous Delmonico's Restaurant in New York City, as item number 86 on their menu, their house steak, often ran out during the 19th century.
    • Another explanation is that Chumley's, a famous 1900s New York speakeasy, was located at 86 Bedford St. During Prohibition, an entrance through an interior adjoining courtyard was used, as it provided privacy and discretion for customers. As was a New York tradition, the cops were on the payroll of the bar and would give a ring to the bar that they were coming for a raid. The bartender would then give the command "86 everybody!", which meant that everyone should hightail it out the 86 Bedford entrance because the cops were coming in through the courtyard door.
    • The term came into popular use among soldiers and veterans to describe missing soldiers as 86'd. Rather than describe buddies missing in action, it was slang to describe the MIA as violating UCMJ Sub Chapter X Article 86.
    • Another explanation is the possibility of a simple variation of the slang term deep six, which has identical meaning, and is simply meant to describe the approximate depth of a grave.
    • Another possible origin is the public outdoor observatory on the 86th floor of the Empire State Building, the site of more than 30 suicides.
  • In the TV series Get Smart, the principal character Maxwell Smart was also known as Agent 86.
  • American rock band Green Day has a song called 86
  • The number of the French department Vienne
  • The designation of two highways named Interstate 86, one in Idaho and the other in Pennsylvania and New York.
  • The code for international direct dial phone calls to China
  • One of five ISBN Group Identifiers for books published in Serbia
  • Used to refer to the popular Toyota AE86 Sprinter Trueno
  • The year AD 86, 86 BC, or 1986.
  • The name of the Boston rock band 'Eighty-six'
  • On the Fox website for Hell's Kitchen (US TV series), each contestant's picture has "86'd" overlaid on it when the contestant is eliminated.
  • In FIRST Robotics Competition, 86 is the official number for Team Resistance, Going Against the Current.
  • On the PBS Show Cooking Under Fire, when a Contestant is eliminated, the judge tells them they're "86'd."
  • The character Chick Hicks from the movie Cars is a stock car whose number is 86. The number refers both to movie creators Pixar's founding year, as well as his overtly aggressive and dangerous driving style (see use of 86 as a verb, above).
  • The Federal law was amended in 1986 to begin Daylight Saving Time on the first Sunday in April.
  • The Red Sox won the World Series for the first time in 86 years in 2004, and lost it with bad luck in 1986.
  • The streets in Flatbush, Brooklyn end at Gravesend with 86th Street.
  • New York City's Pier 86 is the site of the aircraft carrier USS Intrepid, now a Sea, Air, and Space Museum.
  • The Statue of Liberty was completed in 1886.
  • The Challenger space shuttle exploded in 1986.
  • The Saint Patrick's Day parade in NYC ended on 86th Street.
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