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53104728231 = 32171732006299
BaseRepresentation
bin110001011101010010…
…011101100010100111
312002001221220201002100
4301131102131202213
51332224302300411
640221310343143
73556661512362
oct613522354247
9162057821070
1053104728231
1120581264355
12a3607baab3
135014061c19
1427dabd90d9
1515ac224456
hexc5d49d8a7

53104728231 has 24 divisors (see below), whose sum is σ = 81688510800. Its totient is φ = 33127992576.

The previous prime is 53104728217. The next prime is 53104728253. The reversal of 53104728231 is 13282740135.

53104728231 is a `hidden beast` number, since 531 + 0 + 47 + 2 + 82 + 3 + 1 = 666.

It is not a de Polignac number, because 53104728231 - 29 = 53104727719 is a prime.

It is a super-2 number, since 2×531047282312 (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 (53104728331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 976681 + ... + 1029618.

It is an arithmetic number, because the mean of its divisors is an integer number (3403687950).

Almost surely, 253104728231 is an apocalyptic number.

53104728231 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

53104728231 is a deficient number, since it is larger than the sum of its proper divisors (28583782569).

53104728231 is a wasteful number, since it uses less digits than its factorization.

53104728231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006495 (or 2006492 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 53104728231 in words is "fifty-three billion, one hundred four million, seven hundred twenty-eight thousand, two hundred thirty-one".

Divisors: 1 3 9 17 51 153 173 519 1557 2941 8823 26469 2006299 6018897 18056691 34107083 102321249 306963747 347089727 1041269181 3123807543 5900525359 17701576077 53104728231