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56623996 = 22111398993
BaseRepresentation
bin1101100000000…
…0001101111100
310221112210112001
43120000031330
5103443431441
65341352044
71255203352
oct330001574
9127483461
1056623996
1129a654a0
1216b68624
13b967430
14773d7d2
154e87731
hex360037c

56623996 has 24 divisors (see below), whose sum is σ = 116416944. Its totient is φ = 23758080.

The previous prime is 56623967. The next prime is 56623997. The reversal of 56623996 is 69932665.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56623997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48925 + ... + 50068.

It is an arithmetic number, because the mean of its divisors is an integer number (4850706).

Almost surely, 256623996 is an apocalyptic number.

It is an amenable number.

56623996 is an abundant number, since it is smaller than the sum of its proper divisors (59792948).

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

56623996 is a wasteful number, since it uses less digits than its factorization.

56623996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99021 (or 99019 counting only the distinct ones).

The product of its digits is 524880, while the sum is 46.

The square root of 56623996 is about 7524.8917600189. The cubic root of 56623996 is about 384.0020164101.

The spelling of 56623996 in words is "fifty-six million, six hundred twenty-three thousand, nine hundred ninety-six".

Divisors: 1 2 4 11 13 22 26 44 52 143 286 572 98993 197986 395972 1088923 1286909 2177846 2573818 4355692 5147636 14155999 28311998 56623996