68 (number)

68 is the natural number following 67 and preceding 69

List of numbersIntegers

<< 60 61 62 63 64 65 66 67 68 69 >>

Cardinal sixty-eight
Ordinal68th (sixty-eighth)
Factorization<math>2^2 \cdot 17<math>
Divisors 2, 4, 17, 34
Roman numeralLXVIII
Binary1000100
Hexadecimal44

In mathematics

Sixty-eight is a nontotient.

In science

In astronomy,

Messier object M68, a magnitude 9.0 globular cluster in the constellation Hydra
The New General Catalogue object (http://www.ngcic.org/) NGC 68, a spiral galaxy in the constellation Andromeda
The Saros number (http://sunearth.gsfc.nasa.gov/eclipse/SEsaros/SEsaros1-175.html) of the solar eclipse series which began on -626 March 16 and ended on 685 August 20. The duration of Saros series 68 was 1280.1 years, and it contained 72 solar eclipses.
The Saros number (http://sunearth.gsfc.nasa.gov/eclipse/LEsaros/LEsaros1-175.html) of the lunar eclipse series which began on -613 July 3 and ended on 685 August 20. The duration of Saros series 68 was 1298.1 years, and it contained 73 lunar eclipses.

In other fields

eo:Sesdek ok ko:68 ia:68 it:Sessantotto ja:68 sl:68 (število) sv:68 (tal) zh:68

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