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231162054 = 2385944851
BaseRepresentation
bin11011100011101…
…00000011000110
3121002222020201120
431301310003012
5433134141204
634534334410
75504562564
oct1561640306
9532866646
10231162054
11109537522
12654ba406
1338b781a6
14229b4a34
15154626d9
hexdc740c6

231162054 has 16 divisors (see below), whose sum is σ = 462872640. Its totient is φ = 76962600.

The previous prime is 231162053. The next prime is 231162067. The reversal of 231162054 is 450261132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231162053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17272 + ... + 27579.

It is an arithmetic number, because the mean of its divisors is an integer number (28929540).

Almost surely, 2231162054 is an apocalyptic number.

231162054 is an abundant number, since it is smaller than the sum of its proper divisors (231710586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231162054 is a wasteful number, since it uses less digits than its factorization.

231162054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45715.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 231162054 is about 15204.0144040974. The cubic root of 231162054 is about 613.7226923472.

The spelling of 231162054 in words is "two hundred thirty-one million, one hundred sixty-two thousand, fifty-four".

Divisors: 1 2 3 6 859 1718 2577 5154 44851 89702 134553 269106 38527009 77054018 115581027 231162054