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56720152 = 239077817
BaseRepresentation
bin1101100001011…
…1101100011000
310221201200102101
43120113230120
5104010021102
65343413144
71256053606
oct330275430
9127650371
1056720152
112a020765
1216bb41b4
13b99c128
147766876
154ea5e87
hex3617b18

56720152 has 16 divisors (see below), whose sum is σ = 106481160. Its totient is φ = 28325184.

The previous prime is 56720113. The next prime is 56720159. The reversal of 56720152 is 25102765.

56720152 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 56720152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56720159) 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, 3348 + ... + 11164.

Almost surely, 256720152 is an apocalyptic number.

It is an amenable number.

56720152 is a deficient number, since it is larger than the sum of its proper divisors (49761008).

56720152 is a wasteful number, since it uses less digits than its factorization.

56720152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8730 (or 8726 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 56720152 is about 7531.2782447603. The cubic root of 56720152 is about 384.2192577408.

The spelling of 56720152 in words is "fifty-six million, seven hundred twenty thousand, one hundred fifty-two".

Divisors: 1 2 4 8 907 1814 3628 7256 7817 15634 31268 62536 7090019 14180038 28360076 56720152