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231461372 = 2280971527
BaseRepresentation
bin11011100101111…
…01000111111100
3121010112110022102
431302331013330
5433223230442
634545004232
75510250332
oct1562750774
9533473272
10231461372
1110972139a
1265623678
1338c514bc
1422a51b52
15154c1232
hexdcbd1fc

231461372 has 12 divisors (see below), whose sum is σ = 405563760. Its totient is φ = 115586016.

The previous prime is 231461357. The next prime is 231461413. The reversal of 231461372 is 273164132.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32528 + ... + 38999.

It is an arithmetic number, because the mean of its divisors is an integer number (33796980).

Almost surely, 2231461372 is an apocalyptic number.

It is an amenable number.

231461372 is a deficient number, since it is larger than the sum of its proper divisors (174102388).

231461372 is a wasteful number, since it uses less digits than its factorization.

231461372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72340 (or 72338 counting only the distinct ones).

The product of its digits is 6048, while the sum is 29.

The square root of 231461372 is about 15213.8546069035. The cubic root of 231461372 is about 613.9874691073.

The spelling of 231461372 in words is "two hundred thirty-one million, four hundred sixty-one thousand, three hundred seventy-two".

Divisors: 1 2 4 809 1618 3236 71527 143054 286108 57865343 115730686 231461372