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13097632518 = 2321018171471
BaseRepresentation
bin11000011001010111…
…00000001100000110
31020210210111200002200
430030223200030012
5203310443220033
610003355415330
7642400016355
oct141453401406
936723450080
1013097632518
1156112aa193
122656454546
131309696a19
148c370199c
15519cda013
hex30cae0306

13097632518 has 24 divisors (see below), whose sum is σ = 28381388256. Its totient is φ = 4365387600.

The previous prime is 13097632511. The next prime is 13097632519. The reversal of 13097632518 is 81523679031.

13097632518 is a `hidden beast` number, since 1 + 3 + 0 + 9 + 7 + 632 + 5 + 1 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13097632511) 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 11 ways as a sum of consecutive naturals, for example, 147523 + ... + 218993.

It is an arithmetic number, because the mean of its divisors is an integer number (1182557844).

Almost surely, 213097632518 is an apocalyptic number.

13097632518 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13097632518 is an abundant number, since it is smaller than the sum of its proper divisors (15283755738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13097632518 is a wasteful number, since it uses less digits than its factorization.

13097632518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81660 (or 81657 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 13097632518 in words is "thirteen billion, ninety-seven million, six hundred thirty-two thousand, five hundred eighteen".

Divisors: 1 2 3 6 9 18 10181 20362 30543 61086 71471 91629 142942 183258 214413 428826 643239 1286478 727646251 1455292502 2182938753 4365877506 6548816259 13097632518