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56868269 = 60079467
BaseRepresentation
bin1101100011101…
…1110110101101
310222000012121012
43120323312231
5104024241034
65350515005
71260241463
oct330736655
9128005535
1056868269
112a111a77
1217065a65
13ba21683
1477a4833
154ed4cce
hex363bdad

56868269 has 4 divisors (see below), whose sum is σ = 56883744. Its totient is φ = 56852796.

The previous prime is 56868263. The next prime is 56868283. The reversal of 56868269 is 96286865.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 96286865 = 519257373.

It is a cyclic number.

It is not a de Polignac number, because 56868269 - 28 = 56868013 is a prime.

It is a super-2 number, since 2×568682692 = 6468000038112722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56868263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1274 + ... + 10740.

It is an arithmetic number, because the mean of its divisors is an integer number (14220936).

Almost surely, 256868269 is an apocalyptic number.

It is an amenable number.

56868269 is a deficient number, since it is larger than the sum of its proper divisors (15475).

56868269 is an equidigital number, since it uses as much as digits as its factorization.

56868269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15474.

The product of its digits is 1244160, while the sum is 50.

The square root of 56868269 is about 7541.1052903404. The cubic root of 56868269 is about 384.5534125721.

The spelling of 56868269 in words is "fifty-six million, eight hundred sixty-eight thousand, two hundred sixty-nine".

Divisors: 1 6007 9467 56868269