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56835631831 = 1129091776169
BaseRepresentation
bin110100111011101010…
…101110101011010111
312102200222021020200011
4310323222232223113
51412344410204311
642035424501051
74051303620346
oct647352565327
9172628236604
1056835631831
1122116261460
12b02217a787
135489cb5ba4
142a72501b5d
151729a42321
hexd3baaead7

56835631831 has 8 divisors (see below), whose sum is σ = 62023856400. Its totient is φ = 51650965440.

The previous prime is 56835631829. The next prime is 56835631873. The reversal of 56835631831 is 13813653865.

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

It is a cyclic number.

It is not a de Polignac number, because 56835631831 - 21 = 56835631829 is a prime.

It is a super-2 number, since 2×568356318312 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56835631031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 856086 + ... + 920083.

It is an arithmetic number, because the mean of its divisors is an integer number (7752982050).

Almost surely, 256835631831 is an apocalyptic number.

56835631831 is a deficient number, since it is larger than the sum of its proper divisors (5188224569).

56835631831 is a wasteful number, since it uses less digits than its factorization.

56835631831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779089.

The product of its digits is 1555200, while the sum is 49.

The spelling of 56835631831 in words is "fifty-six billion, eight hundred thirty-five million, six hundred thirty-one thousand, eight hundred thirty-one".

Divisors: 1 11 2909 31999 1776169 19537859 5166875621 56835631831