64 (number) Article Index for
64
 

Information About

64 (number)






Cardinal 64
sixty-four
Ordinal 64th
sixty-fourth
Numeral System  
Factorization 2^6\,\!
Divisor s 2, 4, 8, 16, 32
Roman Numeral LXIV
Binary 1000000
Hexadecimal 40


IN MATHEMATICS

Sixty-four is the square of 8 and the cube of 4 . It is the smallest number with exactly seven Divisor s. It is the lowest positive Power Of Two that is adjacent to neither a Mersenne Prime nor a Fermat Prime . It is also a Dodecagonal Number and a Centered Triangular Number . 64 is a Self Number .


IN SCIENCE


In Astronomy ,

: Messier Object M64 , a Magnitude 9.0 Galaxy in the Constellation Coma Berenices , also known as the Black Eye Galaxy .

: The , a Barred Spiral Galaxy in the constellation Cetus

:The series which began on -832 April 11 and ended on 430 May 8 . The duration of Saros series 64 was 1262.1 years, and it contained 71 solar eclipses.

:The Saros number of the Lunar Eclipse series which began on -801 August 9 and ended on 714 February 4 . The duration of Saros series 64 was 1514.5 years, and it contained 85 lunar eclipses.


IN OTHER FIELDS

Sixty-four is also: