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232891930 = 2519264513
BaseRepresentation
bin11011110000110…
…10011000011010
3121020020010200001
431320122120122
5434110020210
635035403214
75525356135
oct1570323032
9536203601
10232891930
1110a509177
1265bb350a
133933269b
1422d0521c
15156a503a
hexde1a61a

232891930 has 24 divisors (see below), whose sum is σ = 442437012. Its totient is φ = 88252416.

The previous prime is 232891927. The next prime is 232891943. The reversal of 232891930 is 39198232.

232891930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 221325129 + 11566801 = 14877^2 + 3401^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 232891930.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28647 + ... + 35866.

Almost surely, 2232891930 is an apocalyptic number.

232891930 is a deficient number, since it is larger than the sum of its proper divisors (209545082).

232891930 is a wasteful number, since it uses less digits than its factorization.

232891930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64558 (or 64539 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 232891930 is about 15260.7971613543. The cubic root of 232891930 is about 615.2497982752.

The spelling of 232891930 in words is "two hundred thirty-two million, eight hundred ninety-one thousand, nine hundred thirty".

Divisors: 1 2 5 10 19 38 95 190 361 722 1805 3610 64513 129026 322565 645130 1225747 2451494 6128735 12257470 23289193 46578386 116445965 232891930