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231353164 = 2278262613
BaseRepresentation
bin11011100101000…
…10101101001100
3121010022221212201
431302202231030
5433211300124
634542411244
75506320010
oct1562425514
9533287781
10231353164
11109658069
1265590b24
1338c14183
1422a24540
151549e144
hexdca2b4c

231353164 has 12 divisors (see below), whose sum is σ = 462706384. Its totient is φ = 99151344.

The previous prime is 231353137. The next prime is 231353167. The reversal of 231353164 is 461353132.

231353164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

231353164 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 8262613 = 231353164 / (2 + 3 + 1 + 3 + 5 + 3 + 1 + 6 + 4).

It is not an unprimeable number, because it can be changed into a prime (231353167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4131279 + ... + 4131334.

Almost surely, 2231353164 is an apocalyptic number.

It is an amenable number.

231353164 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

231353164 is a wasteful number, since it uses less digits than its factorization.

231353164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8262624 (or 8262622 counting only the distinct ones).

The product of its digits is 6480, while the sum is 28.

The square root of 231353164 is about 15210.2979589487. The cubic root of 231353164 is about 613.8917746487.

The spelling of 231353164 in words is "two hundred thirty-one million, three hundred fifty-three thousand, one hundred sixty-four".

Divisors: 1 2 4 7 14 28 8262613 16525226 33050452 57838291 115676582 231353164