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53152113 = 372418819
BaseRepresentation
bin1100101011000…
…0100101110001
310201000101222210
43022300211301
5102101331423
65135122333
71213533300
oct312604561
9121011883
1053152113
1128003a73
12159733a9
13b020071
1470b8437
1549edb93
hex32b0971

53152113 has 24 divisors (see below), whose sum is σ = 84460320. Its totient is φ = 29628480.

The previous prime is 53152111. The next prime is 53152133. The reversal of 53152113 is 31125135.

It is not a de Polignac number, because 53152113 - 21 = 53152111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 53152113.

It is not an unprimeable number, because it can be changed into a prime (53152111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1618 + ... + 10436.

It is an arithmetic number, because the mean of its divisors is an integer number (3519180).

Almost surely, 253152113 is an apocalyptic number.

It is an amenable number.

53152113 is a deficient number, since it is larger than the sum of its proper divisors (31308207).

53152113 is a wasteful number, since it uses less digits than its factorization.

53152113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8877 (or 8870 counting only the distinct ones).

The product of its digits is 450, while the sum is 21.

The square root of 53152113 is about 7290.5495677624. The cubic root of 53152113 is about 375.9875906007.

Adding to 53152113 its reverse (31125135), we get a palindrome (84277248).

The spelling of 53152113 in words is "fifty-three million, one hundred fifty-two thousand, one hundred thirteen".

Divisors: 1 3 7 21 41 49 123 147 287 861 2009 6027 8819 26457 61733 185199 361579 432131 1084737 1296393 2531053 7593159 17717371 53152113