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56913952908 = 2238357142523
BaseRepresentation
bin110101000000010101…
…100000000010001100
312102220102122100222210
4311000111200002030
51413024432443113
642051303310420
74053244421601
oct650025400214
9172812570883
1056913952908
112215649621a
12b04444b410
1354a02a9017
142a7ca8c6a8
1517318636c3
hexd4056008c

56913952908 has 24 divisors (see below), whose sum is σ = 134399216448. Its totient is φ = 18742747216.

The previous prime is 56913952903. The next prime is 56913952937. The reversal of 56913952908 is 80925931965.

It is a super-2 number, since 2×569139529082 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56913952903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28570266 + ... + 28572257.

It is an arithmetic number, because the mean of its divisors is an integer number (5599967352).

Almost surely, 256913952908 is an apocalyptic number.

It is an amenable number.

56913952908 is an abundant number, since it is smaller than the sum of its proper divisors (77485263540).

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

56913952908 is a wasteful number, since it uses less digits than its factorization.

56913952908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57142613 (or 57142611 counting only the distinct ones).

The product of its (nonzero) digits is 5248800, while the sum is 57.

The spelling of 56913952908 in words is "fifty-six billion, nine hundred thirteen million, nine hundred fifty-two thousand, nine hundred eight".

Divisors: 1 2 3 4 6 12 83 166 249 332 498 996 57142523 114285046 171427569 228570092 342855138 685710276 4742829409 9485658818 14228488227 18971317636 28456976454 56913952908