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56761065 = 3251261357
BaseRepresentation
bin1101100010000…
…1101011101001
310221210202112200
43120201223221
5104012323230
65344330413
71256314104
oct330415351
9127722480
1056761065
112a049479
1217013a09
13b9b493a
14777773b
154eb3160
hex3621ae9

56761065 has 12 divisors (see below), whose sum is σ = 98385924. Its totient is φ = 30272544.

The previous prime is 56761063. The next prime is 56761087. The reversal of 56761065 is 56016765.

It is a happy number.

56761065 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 2 ways, for example, as 27373824 + 29387241 = 5232^2 + 5421^2 .

It is not a de Polignac number, because 56761065 - 21 = 56761063 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (56761063) 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 11 ways as a sum of consecutive naturals, for example, 630634 + ... + 630723.

It is an arithmetic number, because the mean of its divisors is an integer number (8198827).

Almost surely, 256761065 is an apocalyptic number.

It is an amenable number.

56761065 is a deficient number, since it is larger than the sum of its proper divisors (41624859).

56761065 is a wasteful number, since it uses less digits than its factorization.

56761065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261368 (or 1261365 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 56761065 is about 7533.9939607090. The cubic root of 56761065 is about 384.3116163580.

The spelling of 56761065 in words is "fifty-six million, seven hundred sixty-one thousand, sixty-five".

Divisors: 1 3 5 9 15 45 1261357 3784071 6306785 11352213 18920355 56761065