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231343132 = 22731375783
BaseRepresentation
bin11011100101000…
…00010000011100
3121010022110010011
431302200100130
5433210440012
634542253004
75506245526
oct1562402034
9533273104
10231343132
11109650579
1265587164
1338c0c737
1422a20a16
151549b1a7
hexdca041c

231343132 has 24 divisors (see below), whose sum is σ = 413463456. Its totient is φ = 113234688.

The previous prime is 231343127. The next prime is 231343153.

231343132 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37113 + ... + 42895.

It is an arithmetic number, because the mean of its divisors is an integer number (17227644).

Almost surely, 2231343132 is an apocalyptic number.

It is an amenable number.

231343132 is a deficient number, since it is larger than the sum of its proper divisors (182120324).

231343132 is a wasteful number, since it uses less digits than its factorization.

231343132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5997 (or 5995 counting only the distinct ones).

The product of its digits is 1296, while the sum is 22.

The square root of 231343132 is about 15209.9681787964. The cubic root of 231343132 is about 613.8829012721.

The spelling of 231343132 in words is "two hundred thirty-one million, three hundred forty-three thousand, one hundred thirty-two".

Divisors: 1 2 4 73 137 146 274 292 548 5783 10001 11566 20002 23132 40004 422159 792271 844318 1584542 1688636 3169084 57835783 115671566 231343132