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56749696 = 271273491
BaseRepresentation
bin1101100001111…
…0111010000000
310221210011221121
43120132322000
5104011442241
65344202024
71256236003
oct330367200
9127704847
1056749696
112a040983
1217009314
13b9ac703
14777353a
154eaead1
hex361ee80

56749696 has 32 divisors (see below), whose sum is σ = 113978880. Its totient is φ = 28143360.

The previous prime is 56749687. The next prime is 56749711. The reversal of 56749696 is 69694765.

It is a tau number, because it is divible by the number of its divisors (32).

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14511 + ... + 18001.

It is an arithmetic number, because the mean of its divisors is an integer number (3561840).

Almost surely, 256749696 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 56749696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56989440).

56749696 is an abundant number, since it is smaller than the sum of its proper divisors (57229184).

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

56749696 is a wasteful number, since it uses less digits than its factorization.

56749696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3632 (or 3620 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 52.

The square root of 56749696 is about 7533.2394094440. The cubic root of 56749696 is about 384.2859559838.

The spelling of 56749696 in words is "fifty-six million, seven hundred forty-nine thousand, six hundred ninety-six".

Divisors: 1 2 4 8 16 32 64 127 128 254 508 1016 2032 3491 4064 6982 8128 13964 16256 27928 55856 111712 223424 443357 446848 886714 1773428 3546856 7093712 14187424 28374848 56749696