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56013051840 = 26351923315973
BaseRepresentation
bin110100001010101000…
…110101011111000000
312100120122102212001120
4310022220311133000
51404203320124330
641422042032240
74022025041064
oct641250653700
9170518385046
1056013051840
11218339a8989
12aa327a8680
135388758475
1429d5179aa4
1516cc709c10
hexd0aa357c0

56013051840 has 896 divisors, whose sum is σ = 207868723200. Its totient is φ = 12700385280.

The previous prime is 56013051799. The next prime is 56013051883. The reversal of 56013051840 is 4815031065.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 767302044 + ... + 767302116.

Almost surely, 256013051840 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 56013051840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103934361600).

56013051840 is an abundant number, since it is smaller than the sum of its proper divisors (151855671360).

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

56013051840 is a wasteful number, since it uses less digits than its factorization.

56013051840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The spelling of 56013051840 in words is "fifty-six billion, thirteen million, fifty-one thousand, eight hundred forty".