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56715492708 = 22347192531307
BaseRepresentation
bin110100110100100000…
…011011110101100100
312102101121012112210000
4310310200123311210
51412123131231313
642015453501300
74045314506460
oct646440336544
9172347175700
1056715492708
1122064465126
12aba9aa1830
13546b140854
142a6058b4a0
15171e210673
hexd3481bd64

56715492708 has 360 divisors, whose sum is σ = 182347526592. Its totient is φ = 15050385792.

The previous prime is 56715492679. The next prime is 56715492709. The reversal of 56715492708 is 80729451765.

56715492708 is a `hidden beast` number, since 5 + 6 + 71 + 549 + 27 + 0 + 8 = 666.

It is a super-2 number, since 2×567154927082 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (56715492709) 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 119 ways as a sum of consecutive naturals, for example, 43392991 + ... + 43394297.

Almost surely, 256715492708 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56715492708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91173763296).

56715492708 is an abundant number, since it is smaller than the sum of its proper divisors (125632033884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56715492708 is a wasteful number, since it uses less digits than its factorization.

56715492708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421 (or 1391 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 54.

The spelling of 56715492708 in words is "fifty-six billion, seven hundred fifteen million, four hundred ninety-two thousand, seven hundred eight".