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56985508944 = 243271331140281
BaseRepresentation
bin110101000100100110…
…011101110001010000
312110002102021210102100
4311010212131301100
51413201242241234
642102341120400
74055103556020
oct650446356120
9173072253370
1056985508944
112219291a341
12b0643b9100
1354b2070b80
142a88397a80
151737c9a399
hexd4499dc50

56985508944 has 240 divisors, whose sum is σ = 202616587264. Its totient is φ = 14544230400.

The previous prime is 56985508933. The next prime is 56985508969. The reversal of 56985508944 is 44980558965.

56985508944 is a `hidden beast` number, since 5 + 6 + 9 + 85 + 508 + 9 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 336084 + ... + 476364.

Almost surely, 256985508944 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 56985508944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101308293632).

56985508944 is an abundant number, since it is smaller than the sum of its proper divisors (145631078320).

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

56985508944 is a wasteful number, since it uses less digits than its factorization.

56985508944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140346 (or 140337 counting only the distinct ones).

The product of its (nonzero) digits is 62208000, while the sum is 63.

The spelling of 56985508944 in words is "fifty-six billion, nine hundred eighty-five million, five hundred eight thousand, nine hundred forty-four".