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87 ( eighty-seven) is the natural number following 86 and preceding 88.
the sum of the squares of the first four primes (87 = 2
2 + 3 2 + 5 2 + 7 2). the sum of the sums of the divisors of the first 10
positive integers.  the twenty-sixth distinct
semiprime and the eighth of the form (3.q). 5! - 4! - 3! - 2! - 1! = 87
In other fields
Eighty-seven is also:
atomic number of francium An answer to a popular puzzle question states 16, 06, 68, 88, xx, 98. The answer is 87 when looked upside down.
The number of years between the signing of the
U.S. Declaration of Independence and the Battle of Gettysburg, immortalized in Abraham Lincoln's Gettysburg Address with the phrase " and seven years ago..." fourscore The model number of
Junkers Ju 87 The number of the French department
code for international direct dial phone calls to Inmarsat and other services The 87
photographic filter blocks visible light allowing only infrared light to pass The
ISBN Group Identifier for books published in Denmark. The opus number of the
24 Preludes and Fugues of Dmitri Shostakovich. In
model railroading, the ratio of the popular H0 scale is 1:87. Proto:87 scale claims to offer precise proportions of wheels and tracks of real railroads.
David Bowie CD (1987) includes the song, " Never Let Me Down '87 and Cry" The
87th United States Congress met from January 3, 1961 - January 3, 1963, during John F. Kennedy's time in office
Ed McBain's film starred 87th Precinct: Lightning Randy Quaid (1995) 87 punch includes one bottle of
Bacardi rum (eight years aged) and 7-up (two-liter bottle)
Wenger Swiss Army Knife version XXL, listed in the as the world's most multi-functional Guinness Book of World Records penknife with 87 tools
by Sonnet 87 William Shakespeare Vault 87 is a main location in the game
Fallout 3 M87* is the first black hole ever photographed.