“62 (number)”的意思、由来-开放百科全书

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62 (number)

释义

In mathematics
In science
In other fields
References

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

In mathematics

62 is:

a composite number with the divisors 2 and 31, being the eighteenth discrete semiprime.
a nontotient.^[1]
palindromic and a repdigit in bases 5 (222₅), 30 (22₃₀) and 61 (11₆₁)
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 only number whose cube in base 10 (238328) consists of 3 digits each occurring 2 times.^[2]
the tenth member of the 7-aliquot tree (7, 8, 10, 14, 20, 22, 34, 38, 49, 62, 75, 118, 148, etc). It has an aliquot sum of 34; itself a discrete semiprime, and its aliquot sequence is: 62,34,20,22,14,10,8,7,1,0.

In science

Sixty-two is the atomic number of Samarium, a lanthanide

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.

References

1. ^{{Cite web|url=https://oeis.org/A005277|title=Sloane's A005277 : Nontotients|last=|first=|date=|website=The On-Line Encyclopedia of Integer Sequences|publisher=OEIS Foundation|access-date=2016-05-30}}
2. ^{{cite web |title=Carnival of Mathematics #62 |url=http://www.johndcook.com/blog/2010/02/05/carnival-of-mathematics-62/ |author=John D. Cook |date=5 February 2010}}

1 : Integers

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