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57318713 = 173499661
BaseRepresentation
bin1101101010100…
…1110100111001
310222212002111022
43122221310321
5104133144323
65404312225
71264125644
oct332516471
9128762438
1057318713
112a39a441
1217242675
13bb4b6ca
147880a5b
1550734c8
hex36a9d39

57318713 has 8 divisors (see below), whose sum is σ = 60870600. Its totient is φ = 53786880.

The previous prime is 57318707. The next prime is 57318733. The reversal of 57318713 is 31781375.

It can be written as a sum of positive squares in 4 ways, for example, as 4276624 + 53042089 = 2068^2 + 7283^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-57318713 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57318733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1103 + ... + 10763.

It is an arithmetic number, because the mean of its divisors is an integer number (7608825).

Almost surely, 257318713 is an apocalyptic number.

It is an amenable number.

57318713 is a deficient number, since it is larger than the sum of its proper divisors (3551887).

57318713 is a wasteful number, since it uses less digits than its factorization.

57318713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10027.

The product of its digits is 17640, while the sum is 35.

The square root of 57318713 is about 7570.9122964145. The cubic root of 57318713 is about 385.5660712078.

The spelling of 57318713 in words is "fifty-seven million, three hundred eighteen thousand, seven hundred thirteen".

Divisors: 1 17 349 5933 9661 164237 3371689 57318713