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56856683161 = 472251537413
BaseRepresentation
bin110100111100111011…
…000010001010011001
312102202102212202200001
4310330323002022121
51412420302330121
642041500013001
74051650555445
oct647473021231
9172672782601
1056856683161
112212712a653
12b029231161
1354914769b5
142a75221825
15172b7ee991
hexd3cec2299

56856683161 has 8 divisors (see below), whose sum is σ = 58092303744. Its totient is φ = 55622142000.

The previous prime is 56856683159. The next prime is 56856683167. The reversal of 56856683161 is 16138665865.

56856683161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 56856683161 - 21 = 56856683159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56856683167) 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, 162910 + ... + 374503.

It is an arithmetic number, because the mean of its divisors is an integer number (7261537968).

Almost surely, 256856683161 is an apocalyptic number.

It is an amenable number.

56856683161 is a deficient number, since it is larger than the sum of its proper divisors (1235620583).

56856683161 is a wasteful number, since it uses less digits than its factorization.

56856683161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539711.

The product of its digits is 6220800, while the sum is 55.

The spelling of 56856683161 in words is "fifty-six billion, eight hundred fifty-six million, six hundred eighty-three thousand, one hundred sixty-one".

Divisors: 1 47 2251 105797 537413 25258411 1209716663 56856683161