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56105896 = 2371191081
BaseRepresentation
bin1101011000000…
…1101110101000
310220120110211011
43112001232220
5103330342041
65322313304
71250615020
oct326015650
9126513734
1056105896
1129741210
1216958834
13b815672
147646a80
154dd3e81
hex3581ba8

56105896 has 32 divisors (see below), whose sum is σ = 131158080. Its totient is φ = 21859200.

The previous prime is 56105857. The next prime is 56105911. The reversal of 56105896 is 69850165.

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 7 ways as a sum of consecutive naturals, for example, 44925 + ... + 46156.

It is an arithmetic number, because the mean of its divisors is an integer number (4098690).

Almost surely, 256105896 is an apocalyptic number.

56105896 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

56105896 is an abundant number, since it is smaller than the sum of its proper divisors (75052184).

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

56105896 is a wasteful number, since it uses less digits than its factorization.

56105896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91105 (or 91101 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 56105896 is about 7490.3869058948. The cubic root of 56105896 is about 382.8272415625.

The spelling of 56105896 in words is "fifty-six million, one hundred five thousand, eight hundred ninety-six".

Divisors: 1 2 4 7 8 11 14 22 28 44 56 77 88 154 308 616 91081 182162 364324 637567 728648 1001891 1275134 2003782 2550268 4007564 5100536 7013237 8015128 14026474 28052948 56105896