The 130 (number) reference article from the English Wikipedia on 24-Apr-2004
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130 (number)

130 is the natural number following 129 and preceding 131.

List of numbersIntegers

<< 100 110 120 130 140 150 160 170 180 190 >>

CardinalOne hundred [and]
thirty
Ordinal130th
Factorization
Divisors2, 5, 13, 26, 65
Roman numeralCXXX
Binary10000010
Hexadecimal82

One hundred thirty is a sphenic number.

One hundred thirty is also:

Other numbers in the 130s


One hundred thirty-one (131, CXXXI) is the natural number following one hundred thirty and preceding one hundred thirty-two. It is the 32nd prime number, and it is a palindromic prime as well as a permutable prime, since it permutes with one hundred thirteen and three hundred eleven.

This number is the sum of three consecutive primes (41 + 43 + 47).

One hundred thirty-one is also:


One hundred thirty-two (132, CXXXII) is the natural number following one hundred thirty-one and preceding one hundred thirty-three. It is a Catalan number and a composite number, and its factorization is

One hundred thirty-two is also:


One hundred thirty-three (133, CXXXIII) is the natural number following one hundred thirty-two and preceding one hundred thirty-four. It is a composite number, and its factorization is

It is the smallest n whose divisors (excluding n itself) added up divide φ(n). It is an octagonal number.

One hundred thirty-three is also:


One hundred thirty-four (134, CXXXIV) is the natural number following one hundred thirty-three and preceding one hundred thirty-five. It is a composite number, and its factorization is

One hundred thirty-four is also:


One hundred thirty-five (135, CXXXV) is the natural number following one hundred thirty-four and preceding one hundred thirty-six. It is a composite number, and its factorization is

One hundred thirty-five is also:


One hundred thirty-six (136, CXXXVI) is the natural number following one hundred thirty-five and preceding one hundred thirty-six. It is a composite number, and its factorization is

136 is itself a factor of the Eddington number.

One hundred thirty-six is also:


One hundred thirty-seven now has its own article.

One hundred thirty-eight (138, CXXXVIII) is the natural number following one hundred thirty-seven and preceding one hundred thirty-eight. It is a composite number, and its factorization

makes it a sphenic number. This number is the sum of four consecutive primes (29 + 31 + 37 + 41).

One hundred thirty-eight is also:


One hundred thirty-nine (139, CXXXIX) is the natural number following one hundred thirty-eight and preceding one hundred forty. It is the 34th prime number, the previous is one hundred thirty-seven, with which it comprises a twin prime.

This number is the sum of five consecutive prime numbers (19 + 23 + 29 + 31 + 37).

One hundred thirty-nine is also: