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113130131 = 2912313169
BaseRepresentation
bin1101011111000…
…11101010010011
321212212121100212
412233203222103
5212430131011
615120434335
72542406312
oct657435223
9255777325
10113130131
115894a384
1231a789ab
131a59000a
141104c279
159dea08b
hex6be3a93

113130131 has 8 divisors (see below), whose sum is σ = 117163200. Its totient is φ = 109105920.

The previous prime is 113130113. The next prime is 113130151. The reversal of 113130131 is 131031311.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-113130131 is a prime.

It is a super-2 number, since 2×1131301312 = 25596853080154322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113130151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34115 + ... + 37283.

It is an arithmetic number, because the mean of its divisors is an integer number (14645400).

Almost surely, 2113130131 is an apocalyptic number.

113130131 is a deficient number, since it is larger than the sum of its proper divisors (4033069).

113130131 is a wasteful number, since it uses less digits than its factorization.

113130131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4429.

The product of its (nonzero) digits is 27, while the sum is 14.

The square root of 113130131 is about 10636.2648989201. The cubic root of 113130131 is about 483.6443255252.

Adding to 113130131 its reverse (131031311), we get a palindrome (244161442).

The spelling of 113130131 in words is "one hundred thirteen million, one hundred thirty thousand, one hundred thirty-one".

Divisors: 1 29 1231 3169 35699 91901 3901039 113130131