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56112581768 = 23173783913291
BaseRepresentation
bin110100010000100100…
…100000110010001000
312100211120201111110012
4310100210200302020
51404404310104033
641435555211052
74024344034565
oct642044406210
9170746644405
1056112581768
11218850a9221
12aa5bba6a88
1353a3266009
142a0448786c
1516d631a248
hexd10920c88

56112581768 has 64 divisors (see below), whose sum is σ = 114555772800. Its totient is φ = 25659694080.

The previous prime is 56112581761. The next prime is 56112581771. The reversal of 56112581768 is 86718521165.

It is not an unprimeable number, because it can be changed into a prime (56112581761) 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 15 ways as a sum of consecutive naturals, for example, 4215203 + ... + 4228493.

It is an arithmetic number, because the mean of its divisors is an integer number (1789933950).

Almost surely, 256112581768 is an apocalyptic number.

It is an amenable number.

56112581768 is an abundant number, since it is smaller than the sum of its proper divisors (58443191032).

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

56112581768 is a wasteful number, since it uses less digits than its factorization.

56112581768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14190 (or 14186 counting only the distinct ones).

The product of its digits is 806400, while the sum is 50.

The spelling of 56112581768 in words is "fifty-six billion, one hundred twelve million, five hundred eighty-one thousand, seven hundred sixty-eight".

Divisors: 1 2 4 8 17 34 37 68 74 136 148 296 629 839 1258 1678 2516 3356 5032 6712 13291 14263 26582 28526 31043 53164 57052 62086 106328 114104 124172 225947 248344 451894 491767 527731 903788 983534 1055462 1807576 1967068 2110924 3934136 4221848 8360039 11151149 16720078 22302298 33440156 44604596 66880312 89209192 189569533 379139066 412592513 758278132 825185026 1516556264 1650370052 3300740104 7014072721 14028145442 28056290884 56112581768