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56695439 = 227324943
BaseRepresentation
bin1101100001000…
…1101010001111
310221200102112002
43120101222033
5104003223224
65343102515
71255621553
oct330215217
9127612462
1056695439
112a004139
1216ba1a3b
13b990ac8
14775b863
154e9d9ae
hex3611a8f

56695439 has 4 divisors (see below), whose sum is σ = 56722656. Its totient is φ = 56668224.

The previous prime is 56695427. The next prime is 56695447. The reversal of 56695439 is 93459665.

56695439 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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-56695439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56695393 and 56695402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56695409) 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, 10199 + ... + 14744.

It is an arithmetic number, because the mean of its divisors is an integer number (14180664).

Almost surely, 256695439 is an apocalyptic number.

56695439 is a deficient number, since it is larger than the sum of its proper divisors (27217).

56695439 is a wasteful number, since it uses less digits than its factorization.

56695439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27216.

The product of its digits is 874800, while the sum is 47.

The square root of 56695439 is about 7529.6373750666. The cubic root of 56695439 is about 384.1634481238.

The spelling of 56695439 in words is "fifty-six million, six hundred ninety-five thousand, four hundred thirty-nine".

Divisors: 1 2273 24943 56695439