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57314813 = 371549049
BaseRepresentation
bin1101101010100…
…0110111111101
310222211220010212
43122220313331
5104133033223
65404242205
71264111403
oct332506775
9128756125
1057314813
112a397516
1217240365
13bb499ba
14787d473
155072278
hex36a8dfd

57314813 has 4 divisors (see below), whose sum is σ = 58863900. Its totient is φ = 55765728.

The previous prime is 57314797. The next prime is 57314819. The reversal of 57314813 is 31841375.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53772889 + 3541924 = 7333^2 + 1882^2 .

It is a cyclic number.

It is not a de Polignac number, because 57314813 - 24 = 57314797 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57314813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57314819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 774488 + ... + 774561.

It is an arithmetic number, because the mean of its divisors is an integer number (14715975).

Almost surely, 257314813 is an apocalyptic number.

It is an amenable number.

57314813 is a deficient number, since it is larger than the sum of its proper divisors (1549087).

57314813 is a wasteful number, since it uses less digits than its factorization.

57314813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1549086.

The product of its digits is 10080, while the sum is 32.

The square root of 57314813 is about 7570.6547273007. The cubic root of 57314813 is about 385.5573262930.

The spelling of 57314813 in words is "fifty-seven million, three hundred fourteen thousand, eight hundred thirteen".

Divisors: 1 37 1549049 57314813