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56731850880 = 2735294124851
BaseRepresentation
bin110100110101011110…
…110101100010000000
312102102201222121222020
4310311132311202000
51412141323212010
642021240241440
74045603530105
oct646536654200
9172381877866
1056731850880
1122072718281
12abb3470280
13547164a443
142a62808aac
151720892470
hexd357b5880

56731850880 has 256 divisors, whose sum is σ = 191638742400. Its totient is φ = 14249984000.

The previous prime is 56731850869. The next prime is 56731850927. The reversal of 56731850880 is 8805813765.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2270455 + ... + 2295305.

Almost surely, 256731850880 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 56731850880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95819371200).

56731850880 is an abundant number, since it is smaller than the sum of its proper divisors (134906891520).

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

56731850880 is a wasteful number, since it uses less digits than its factorization.

56731850880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24943 (or 24931 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 51.

The spelling of 56731850880 in words is "fifty-six billion, seven hundred thirty-one million, eight hundred fifty thousand, eight hundred eighty".