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56809772 = 2219747497
BaseRepresentation
bin1101100010110…
…1100100101100
310221220020100122
43120231210230
5104020403042
65345344112
71256606105
oct330554454
9127806318
1056809772
112a082028
1217038038
13ba00b66
14778b3ac
154ec27d2
hex362d92c

56809772 has 12 divisors (see below), whose sum is σ = 104649720. Its totient is φ = 26909856.

The previous prime is 56809771. The next prime is 56809777. The reversal of 56809772 is 27790865.

56809772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (56809771) by changing a digit.

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, 373673 + ... + 373824.

It is an arithmetic number, because the mean of its divisors is an integer number (8720810).

Almost surely, 256809772 is an apocalyptic number.

It is an amenable number.

56809772 is a deficient number, since it is larger than the sum of its proper divisors (47839948).

56809772 is a wasteful number, since it uses less digits than its factorization.

56809772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747520 (or 747518 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 56809772 is about 7537.2257495713. The cubic root of 56809772 is about 384.4215116078.

The spelling of 56809772 in words is "fifty-six million, eight hundred nine thousand, seven hundred seventy-two".

Divisors: 1 2 4 19 38 76 747497 1494994 2989988 14202443 28404886 56809772