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56346131 = 220325577
BaseRepresentation
bin1101011011110…
…0011000010011
310221000200100202
43112330120103
5103411034011
65331405415
71252635302
oct326743023
9127020322
1056346131
1129895756
1216a5386b
13b89ab0a
1476aa439
154e3023b
hex35bc613

56346131 has 4 divisors (see below), whose sum is σ = 56373912. Its totient is φ = 56318352.

The previous prime is 56346119. The next prime is 56346151. The reversal of 56346131 is 13164365.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13164365 = 52632873.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-56346131 is a prime.

It is a super-2 number, since 2×563461312 = 6349772957338322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56346094 and 56346103.

It is not an unprimeable number, because it can be changed into a prime (56346151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10586 + ... + 14991.

It is an arithmetic number, because the mean of its divisors is an integer number (14093478).

Almost surely, 256346131 is an apocalyptic number.

56346131 is a deficient number, since it is larger than the sum of its proper divisors (27781).

56346131 is a wasteful number, since it uses less digits than its factorization.

56346131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27780.

The product of its digits is 6480, while the sum is 29.

The square root of 56346131 is about 7506.4059975464. The cubic root of 56346131 is about 383.3728618763.

The spelling of 56346131 in words is "fifty-six million, three hundred forty-six thousand, one hundred thirty-one".

Divisors: 1 2203 25577 56346131