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56220808 = 2371003943
BaseRepresentation
bin1101011001110…
…1110010001000
310220210022110011
43112131302020
5103343031213
65325001304
71251604030
oct326356210
9126708404
1056220808
112980a586
12169b3234
13b855a67
1476768c0
154e0803d
hex359dc88

56220808 has 16 divisors (see below), whose sum is σ = 120473280. Its totient is φ = 24094608.

The previous prime is 56220793. The next prime is 56220811. The reversal of 56220808 is 80802265.

56220808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 56220808.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 501916 + ... + 502027.

It is an arithmetic number, because the mean of its divisors is an integer number (7529580).

Almost surely, 256220808 is an apocalyptic number.

It is an amenable number.

56220808 is an abundant number, since it is smaller than the sum of its proper divisors (64252472).

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

56220808 is a wasteful number, since it uses less digits than its factorization.

56220808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003956 (or 1003952 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 56220808 is about 7498.0536141055. The cubic root of 56220808 is about 383.0884229350.

The spelling of 56220808 in words is "fifty-six million, two hundred twenty thousand, eight hundred eight".

Divisors: 1 2 4 7 8 14 28 56 1003943 2007886 4015772 7027601 8031544 14055202 28110404 56220808