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56696769 = 3229217229
BaseRepresentation
bin1101100001000…
…1111111000001
310221200111100100
43120101333001
5104003244034
65343113013
71255625463
oct330217701
9127614310
1056696769
112a005138
1216ba2769
13b9915ac
14775c133
154e9e099
hex3611fc1

56696769 has 12 divisors (see below), whose sum is σ = 84719700. Its totient is φ = 36494304.

The previous prime is 56696749. The next prime is 56696777. The reversal of 56696769 is 96769665.

56696769 is a `hidden beast` number, since 566 + 9 + 6 + 76 + 9 = 666.

56696769 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 12341169 + 44355600 = 3513^2 + 6660^2 .

It is not a de Polignac number, because 56696769 - 29 = 56696257 is a prime.

It is a super-2 number, since 2×566967692 = 6429047230078722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56696749) 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, 108354 + ... + 108875.

It is an arithmetic number, because the mean of its divisors is an integer number (7059975).

Almost surely, 256696769 is an apocalyptic number.

It is an amenable number.

56696769 is a deficient number, since it is larger than the sum of its proper divisors (28022931).

56696769 is a wasteful number, since it uses less digits than its factorization.

56696769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217264 (or 217261 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 54.

The square root of 56696769 is about 7529.7256922148. The cubic root of 56696769 is about 384.1664520891.

The spelling of 56696769 in words is "fifty-six million, six hundred ninety-six thousand, seven hundred sixty-nine".

Divisors: 1 3 9 29 87 261 217229 651687 1955061 6299641 18898923 56696769