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56708332893 = 3223211911013
BaseRepresentation
bin110100110100000101…
…000111110101011101
312102101002201210100200
4310310011013311131
51412114313123033
642015040214113
74045166606412
oct646405076535
9172332653320
1056708332893
1122060414923
12aba760a339
135469804984
142a5d646109
15171d799013
hexd34147d5d

56708332893 has 18 divisors (see below), whose sum is σ = 85628279646. Its totient is φ = 36161832432.

The previous prime is 56708332873. The next prime is 56708332909. The reversal of 56708332893 is 39823380765.

It can be written as a sum of positive squares in only one way, i.e., 34144387524 + 22563945369 = 184782^2 + 150213^2 .

It is not a de Polignac number, because 56708332893 - 29 = 56708332381 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56708332853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5950746 + ... + 5960267.

It is an arithmetic number, because the mean of its divisors is an integer number (4757126647).

Almost surely, 256708332893 is an apocalyptic number.

It is an amenable number.

56708332893 is a deficient number, since it is larger than the sum of its proper divisors (28919946753).

56708332893 is a wasteful number, since it uses less digits than its factorization.

56708332893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11911065 (or 11911039 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 56708332893 in words is "fifty-six billion, seven hundred eight million, three hundred thirty-two thousand, eight hundred ninety-three".

Divisors: 1 3 9 23 69 207 529 1587 4761 11911013 35733039 107199117 273953299 821859897 2465579691 6300925877 18902777631 56708332893