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57389163 = 31323137467
BaseRepresentation
bin1101101011101…
…1000001101011
310222222200010120
43122323001223
5104142423123
65410014323
71264541226
oct332730153
9128880116
1057389163
112a438367
12172773a3
13bb747b0
14789c5bd
1550892e3
hex36bb06b

57389163 has 32 divisors (see below), whose sum is σ = 86800896. Its totient is φ = 33462528.

The previous prime is 57389131. The next prime is 57389179. The reversal of 57389163 is 36198375.

It is not a de Polignac number, because 57389163 - 25 = 57389131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57389663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122656 + ... + 123122.

It is an arithmetic number, because the mean of its divisors is an integer number (2712528).

Almost surely, 257389163 is an apocalyptic number.

57389163 is a deficient number, since it is larger than the sum of its proper divisors (29411733).

57389163 is a wasteful number, since it uses less digits than its factorization.

57389163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643.

The product of its digits is 136080, while the sum is 42.

The square root of 57389163 is about 7575.5635433940. The cubic root of 57389163 is about 385.7239719888.

The spelling of 57389163 in words is "fifty-seven million, three hundred eighty-nine thousand, one hundred sixty-three".

Divisors: 1 3 13 23 39 69 137 299 411 467 897 1401 1781 3151 5343 6071 9453 10741 18213 32223 40963 63979 122889 139633 191937 418899 831727 1471517 2495181 4414551 19129721 57389163