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232916645 = 5132275641
BaseRepresentation
bin11011110001000…
…00011010100101
3121020021101120102
431320200122211
5434111313040
635040113445
75525521163
oct1570403245
9536241512
10232916645
1110a5257a5
1266005885
1339340a00
1422d10233
15156ac515
hexde206a5

232916645 has 12 divisors (see below), whose sum is σ = 302654916. Its totient is φ = 171999360.

The previous prime is 232916639. The next prime is 232916657. The reversal of 232916645 is 546619232.

It can be written as a sum of positive squares in 6 ways, for example, as 1359556 + 231557089 = 1166^2 + 15217^2 .

It is not a de Polignac number, because 232916645 - 28 = 232916389 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 232916599 and 232916608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136976 + ... + 138665.

It is an arithmetic number, because the mean of its divisors is an integer number (25221243).

Almost surely, 2232916645 is an apocalyptic number.

It is an amenable number.

232916645 is a deficient number, since it is larger than the sum of its proper divisors (69738271).

232916645 is a wasteful number, since it uses less digits than its factorization.

232916645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275672 (or 275659 counting only the distinct ones).

The product of its digits is 77760, while the sum is 38.

The square root of 232916645 is about 15261.6068944263. The cubic root of 232916645 is about 615.2715613893.

The spelling of 232916645 in words is "two hundred thirty-two million, nine hundred sixteen thousand, six hundred forty-five".

Divisors: 1 5 13 65 169 845 275641 1378205 3583333 17916665 46583329 232916645