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113162431 = 319737633
BaseRepresentation
bin1101011111010…
…11100010111111
321212221020200011
412233223202333
5212432144211
615121244051
72542602424
oct657534277
9255836604
10113162431
1158971678
1231a93627
131a5a1925
1411059d4b
159e04921
hex6beb8bf

113162431 has 8 divisors (see below), whose sum is σ = 118020224. Its totient is φ = 108380160.

The previous prime is 113162429. The next prime is 113162443. The reversal of 113162431 is 134261311.

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

It is a cyclic number.

It is not a de Polignac number, because 113162431 - 21 = 113162429 is a prime.

It is a super-2 number, since 2×1131624312 = 25611471579659522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113162471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15810 + ... + 21823.

It is an arithmetic number, because the mean of its divisors is an integer number (14752528).

Almost surely, 2113162431 is an apocalyptic number.

113162431 is a deficient number, since it is larger than the sum of its proper divisors (4857793).

113162431 is an equidigital number, since it uses as much as digits as its factorization.

113162431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37761.

The product of its digits is 432, while the sum is 22.

The square root of 113162431 is about 10637.7831807196. The cubic root of 113162431 is about 483.6903498840.

The spelling of 113162431 in words is "one hundred thirteen million, one hundred sixty-two thousand, four hundred thirty-one".

Divisors: 1 31 97 3007 37633 1166623 3650401 113162431