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56920685 = 579144103
BaseRepresentation
bin1101100100100…
…0101001101101
310222002212111112
43121020221231
5104032430220
65352001405
71260550343
oct331105155
9128085445
1056920685
112a148398
1217090265
13ba3c4a3
1477b9993
154ee55c5
hex3648a6d

56920685 has 8 divisors (see below), whose sum is σ = 69169920. Its totient is φ = 44959824.

The previous prime is 56920631. The next prime is 56920687. The reversal of 56920685 is 58602965.

56920685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56920685 - 26 = 56920621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56920687) 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 7 ways as a sum of consecutive naturals, for example, 71657 + ... + 72446.

It is an arithmetic number, because the mean of its divisors is an integer number (8646240).

Almost surely, 256920685 is an apocalyptic number.

It is an amenable number.

56920685 is a deficient number, since it is larger than the sum of its proper divisors (12249235).

56920685 is a wasteful number, since it uses less digits than its factorization.

56920685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144187.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 56920685 is about 7544.5798425095. The cubic root of 56920685 is about 384.6715250820.

The spelling of 56920685 in words is "fifty-six million, nine hundred twenty thousand, six hundred eighty-five".

Divisors: 1 5 79 395 144103 720515 11384137 56920685