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56249157 = 389210671
BaseRepresentation
bin1101011010010…
…0101101000101
310220211202100010
43112210231011
5103344433112
65325340433
71252052466
oct326445505
9126752303
1056249157
1129829908
1216a07719
13b865933
147682d6d
154e1163c
hex35a4b45

56249157 has 8 divisors (see below), whose sum is σ = 75841920. Its totient is φ = 37077920.

The previous prime is 56249153. The next prime is 56249239. The reversal of 56249157 is 75194265.

56249157 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 56249157 - 22 = 56249153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56249153) 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, 105069 + ... + 105602.

It is an arithmetic number, because the mean of its divisors is an integer number (9480240).

Almost surely, 256249157 is an apocalyptic number.

It is an amenable number.

56249157 is a deficient number, since it is larger than the sum of its proper divisors (19592763).

56249157 is a wasteful number, since it uses less digits than its factorization.

56249157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210763.

The product of its digits is 75600, while the sum is 39.

The square root of 56249157 is about 7499.9437997894. The cubic root of 56249157 is about 383.1528021165.

The spelling of 56249157 in words is "fifty-six million, two hundred forty-nine thousand, one hundred fifty-seven".

Divisors: 1 3 89 267 210671 632013 18749719 56249157