63 (number)

63 (number)
63
Cardinal sixty-three
Ordinal 63rd
(sixty-third)
Factorization  3^2 \cdot 7
Divisors 1, 3, 7, 9, 21, 63
Roman numeral LXIII
Binary 1111112
Octal 778
Duodecimal 5312
Hexadecimal 3F16

63 (sixty-three) is a natural number following 62 and preceding 64.

Contents

In mathematics

Although a number of the form 2n - 1, 63 is not a Mersenne prime since n is not prime and 63 is certainly not prime either. It is a Woodall number and a Harshad number. It is a highly cototient number. It is a repdigit in base 4 (333). 63 + 2 = 65

In science

Astronomy

  • The Saros number of the solar eclipse series which began on -879 April 20 and ended on 401 May. The duration of Saros series 63 was 1280.1 years, and it contained 72 solar eclipses.
  • The Saros number of the lunar eclipse series which began on -758 October 12 and ended on 739 March. The duration of Saros series 63 was 1496.5 years, and it contained 84 lunar eclipses.

In other fields

Sixty-three is:

In sports

In Religion

  • There are 63 Tractates in the Mishna, the compilation of Jewish Law.
  • There are 63 Saints in South Indian Shaivism
  • There are 63 Salakapurusas (great beings) in Jain cosmology

Historical years

63 B.C., 63 A.D., 1963, 2063, etc.


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