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56928653 = 291963057
BaseRepresentation
bin1101100100101…
…0100110001101
310222010021102122
43121022212031
5104033204103
65352102325
71260612515
oct331124615
9128107378
1056928653
112a153381
12170949a5
13ba42cc2
1477bc845
154ee7b38
hex364a98d

56928653 has 4 divisors (see below), whose sum is σ = 58891740. Its totient is φ = 54965568.

The previous prime is 56928647. The next prime is 56928659. The reversal of 56928653 is 35682965.

It is a happy number.

56928653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35682965 = 57136593.

It is an interprime number because it is at equal distance from previous prime (56928647) and next prime (56928659).

It can be written as a sum of positive squares in 2 ways, for example, as 48622729 + 8305924 = 6973^2 + 2882^2 .

It is a cyclic number.

It is not a de Polignac number, because 56928653 - 24 = 56928637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56928659) 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, 981500 + ... + 981557.

It is an arithmetic number, because the mean of its divisors is an integer number (14722935).

Almost surely, 256928653 is an apocalyptic number.

It is an amenable number.

56928653 is a deficient number, since it is larger than the sum of its proper divisors (1963087).

56928653 is a wasteful number, since it uses less digits than its factorization.

56928653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1963086.

The product of its digits is 388800, while the sum is 44.

The square root of 56928653 is about 7545.1078852459. The cubic root of 56928653 is about 384.6894735642.

The spelling of 56928653 in words is "fifty-six million, nine hundred twenty-eight thousand, six hundred fifty-three".

Divisors: 1 29 1963057 56928653