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56156469 = 331603833
BaseRepresentation
bin1101011000111…
…0000100110101
310220200001012020
43112032010311
5103334001334
65323343353
71251215325
oct326160465
9126601166
1056156469
1129776206
1216981b59
13b8326a5
14765b285
154de3e49
hex358e135

56156469 has 8 divisors (see below), whose sum is σ = 77290752. Its totient is φ = 36229920.

The previous prime is 56156459. The next prime is 56156563. The reversal of 56156469 is 96465165.

56156469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56156469 - 24 = 56156453 is a prime.

It is a super-2 number, since 2×561564692 = 6307098021095922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56156469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56156449) 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 7 ways as a sum of consecutive naturals, for example, 301824 + ... + 302009.

It is an arithmetic number, because the mean of its divisors is an integer number (9661344).

Almost surely, 256156469 is an apocalyptic number.

It is an amenable number.

56156469 is a deficient number, since it is larger than the sum of its proper divisors (21134283).

56156469 is a wasteful number, since it uses less digits than its factorization.

56156469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603867.

The product of its digits is 194400, while the sum is 42.

The square root of 56156469 is about 7493.7620058286. The cubic root of 56156469 is about 382.9422319006.

The spelling of 56156469 in words is "fifty-six million, one hundred fifty-six thousand, four hundred sixty-nine".

Divisors: 1 3 31 93 603833 1811499 18718823 56156469