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231252084 = 22347101963
BaseRepresentation
bin11011100100010…
…10000001110100
3121010010211020000
431302022001310
5433200031314
634540311300
75505416220
oct1562120164
9533124200
10231252084
11109599128
1265542530
1338baa16b
14229d9780
151547e209
hexdc8a074

231252084 has 60 divisors (see below), whose sum is σ = 690908064. Its totient is φ = 66071376.

The previous prime is 231252067. The next prime is 231252113. The reversal of 231252084 is 480252132.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 48714 + ... + 53249.

Almost surely, 2231252084 is an apocalyptic number.

It is an amenable number.

231252084 is an abundant number, since it is smaller than the sum of its proper divisors (459655980).

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

231252084 is a wasteful number, since it uses less digits than its factorization.

231252084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101986 (or 101975 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 231252084 is about 15206.9748470891. The cubic root of 231252084 is about 613.8023569252.

The spelling of 231252084 in words is "two hundred thirty-one million, two hundred fifty-two thousand, eighty-four".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 54 63 81 84 108 126 162 189 252 324 378 567 756 1134 2268 101963 203926 305889 407852 611778 713741 917667 1223556 1427482 1835334 2141223 2753001 2854964 3670668 4282446 5506002 6423669 8259003 8564892 11012004 12847338 16518006 19271007 25694676 33036012 38542014 57813021 77084028 115626042 231252084