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57000656173 = 58139805721
BaseRepresentation
bin110101000101100000…
…001111110100101101
312110010110210100111211
4311011200033310231
51413214131444143
642104041514421
74055346404026
oct650540176455
9173113710454
1057000656173
11221a042570a
12b0694a2a11
1354b5245526
142a8a3bbc4d
15173928d49d
hexd4580fd2d

57000656173 has 4 divisors (see below), whose sum is σ = 57010467708. Its totient is φ = 56990844640.

The previous prime is 57000656171. The next prime is 57000656183. The reversal of 57000656173 is 37165600075.

It is a happy number.

57000656173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 40353979689 + 16646676484 = 200883^2 + 129022^2 .

It is a cyclic number.

It is not a de Polignac number, because 57000656173 - 21 = 57000656171 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57000656171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4897048 + ... + 4908673.

It is an arithmetic number, because the mean of its divisors is an integer number (14252616927).

Almost surely, 257000656173 is an apocalyptic number.

It is an amenable number.

57000656173 is a deficient number, since it is larger than the sum of its proper divisors (9811535).

57000656173 is an equidigital number, since it uses as much as digits as its factorization.

57000656173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9811534.

The product of its (nonzero) digits is 132300, while the sum is 40.

The spelling of 57000656173 in words is "fifty-seven billion, six hundred fifty-six thousand, one hundred seventy-three".

Divisors: 1 5813 9805721 57000656173