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56804761 = 1311338669
BaseRepresentation
bin1101100010110…
…0010110011001
310221212222111001
43120230112121
5104020223021
65345305001
71256555356
oct330542631
9127788431
1056804761
112a079292
1217035161
13b9cb7b0
14778962d
154ec1091
hex362c599

56804761 has 8 divisors (see below), whose sum is σ = 61717320. Its totient is φ = 51969792.

The previous prime is 56804747. The next prime is 56804773. The reversal of 56804761 is 16740865.

56804761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5953600 + 50851161 = 2440^2 + 7131^2 .

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 56804761 - 225 = 23250329 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56804761.

It is not an unprimeable number, because it can be changed into a prime (56804861) 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, 17866 + ... + 20803.

It is an arithmetic number, because the mean of its divisors is an integer number (7714665).

Almost surely, 256804761 is an apocalyptic number.

It is an amenable number.

56804761 is a deficient number, since it is larger than the sum of its proper divisors (4912559).

56804761 is a wasteful number, since it uses less digits than its factorization.

56804761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38795.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 56804761 is about 7536.8933255022. The cubic root of 56804761 is about 384.4102084302.

The spelling of 56804761 in words is "fifty-six million, eight hundred four thousand, seven hundred sixty-one".

Divisors: 1 13 113 1469 38669 502697 4369597 56804761