62 (number)

From HandWiki
Short description: Natural number
← 61 62 63 →
Cardinalsixty-two
Ordinal62nd
(sixty-second)
Factorization2 × 31
Divisors1, 2, 31, 62
Greek numeralΞΒ´
Roman numeralLXII
Binary1111102
Ternary20223
Quaternary3324
Quinary2225
Senary1426
Octal768
Duodecimal5212
Hexadecimal3E16
Vigesimal3220
Base 361Q36

62 (sixty-two) is the natural number following 61 and preceding 63.

In mathematics

62 as the sum of three distinct positive squares.

62 is:

  • the eighteenth discrete semiprime ([math]\displaystyle{ 2 \times 31 }[/math]) and tenth of the form (2.q), where q is a higher prime.
  • with an aliquot sum of 34; itself a semiprime, within an aliquot sequence of seven composite numbers (62,34,20,22,14,10,8,7,1,0) to the Prime in the 7-aliquot tree. This is the longest aliquot sequence for a semiprime up to 118 which has one more sequence member. 62 is the tenth member of the 7-aliquot tree (7, 8, 10, 14, 20, 22, 34, 38, 49, 62, 75, 118, 148, etc).
  • a nontotient.[1]
  • palindromic and a repdigit in bases 5 (2225) and 30 (2230)
  • the sum of the number of faces, edges and vertices of icosahedron or dodecahedron.
  • the number of faces of two of the Archimedean solids, the rhombicosidodecahedron and truncated icosidodecahedron.
  • the smallest number that is the sum of three distinct positive squares in two (or more) ways, [math]\displaystyle{ 1^2+5^2+6^2 = 2^2+3^2+7^2 }[/math] [2]
  • the only number whose cube in base 10 (238328) consists of 3 digits each occurring 2 times.[3]
  • The 20th & 21st, 72nd & 73rd, 75th & 76th digits of pi.[4]

In science

In other fields

  • 62 is the code for international direct dial calls to Indonesia.
  • In the 1998 Home Run Race, Mark McGwire hit his 62nd home run on September 8, breaking the single-season record. Sammy Sosa hit his 62nd home run just days later on September 13.
  • Under Social Security (United States), the earliest age at which a person may begin receiving retirement benefits (other than disability).

References