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56001857952 = 25319230913297
BaseRepresentation
bin110100001001111110…
…001000100110100000
312100112212101010221010
4310021332020212200
51404142433423302
641421002100520
74021530636615
oct641176104640
9170485333833
1056001857952
1121828652837
12aa2aaaa740
135386339371
1429d38a450c
1516cb74816c
hexd09f889a0

56001857952 has 96 divisors (see below), whose sum is σ = 154820635200. Its totient is φ = 17675808768.

The previous prime is 56001857903. The next prime is 56001857959. The reversal of 56001857952 is 25975810065.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (56001857959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4204968 + ... + 4218264.

It is an arithmetic number, because the mean of its divisors is an integer number (1612714950).

Almost surely, 256001857952 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 56001857952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77410317600).

56001857952 is an abundant number, since it is smaller than the sum of its proper divisors (98818777248).

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

56001857952 is a wasteful number, since it uses less digits than its factorization.

56001857952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15638 (or 15630 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 48.

The spelling of 56001857952 in words is "fifty-six billion, one million, eight hundred fifty-seven thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 19 24 32 38 48 57 76 96 114 152 228 304 456 608 912 1824 2309 4618 6927 9236 13297 13854 18472 26594 27708 36944 39891 43871 53188 55416 73888 79782 87742 106376 110832 131613 159564 175484 212752 221664 252643 263226 319128 350968 425504 505286 526452 638256 701936 757929 1010572 1052904 1276512 1403872 1515858 2021144 2105808 3031716 4042288 4211616 6063432 8084576 12126864 24253728 30702773 61405546 92108319 122811092 184216638 245622184 368433276 491244368 583352687 736866552 982488736 1166705374 1473733104 1750058061 2333410748 2947466208 3500116122 4666821496 7000232244 9333642992 14000464488 18667285984 28000928976 56001857952