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56831006679 = 318943668893
BaseRepresentation
bin110100111011011001…
…000101011111010111
312102200122120021011020
4310323121011133113
51412342214203204
642035141412223
74051216405056
oct647331053727
9172618507136
1056831006679
1122113692517
12b02070a073
135489056905
142a71a5a39d
15172942bbd9
hexd3b6457d7

56831006679 has 4 divisors (see below), whose sum is σ = 75774675576. Its totient is φ = 37887337784.

The previous prime is 56831006677. The next prime is 56831006801. The reversal of 56831006679 is 97660013865.

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

It is a cyclic number.

It is not a de Polignac number, because 56831006679 - 21 = 56831006677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56831006671) 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, 9471834444 + ... + 9471834449.

It is an arithmetic number, because the mean of its divisors is an integer number (18943668894).

Almost surely, 256831006679 is an apocalyptic number.

56831006679 is a deficient number, since it is larger than the sum of its proper divisors (18943668897).

56831006679 is a wasteful number, since it uses less digits than its factorization.

56831006679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18943668896.

The product of its (nonzero) digits is 1632960, while the sum is 51.

The spelling of 56831006679 in words is "fifty-six billion, eight hundred thirty-one million, six thousand, six hundred seventy-nine".

Divisors: 1 3 18943668893 56831006679