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13197751188 = 2233583306953
BaseRepresentation
bin11000100101010010…
…11011001110010100
31021001202220020002120
430102221123032110
5204012111014223
610021333335540
7645024014466
oct142251331624
937052806076
1013197751188
115662871896
122683a975b0
13132434c53b
148d2b24136
155239b4be3
hex312a5b394

13197751188 has 24 divisors (see below), whose sum is σ = 30803447808. Its totient is φ = 4398008256.

The previous prime is 13197751157. The next prime is 13197751261. The reversal of 13197751188 is 88115779131.

It is a super-2 number, since 2×131977511882 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13197751188.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110481 + ... + 196472.

It is an arithmetic number, because the mean of its divisors is an integer number (1283476992).

Almost surely, 213197751188 is an apocalyptic number.

It is an amenable number.

13197751188 is an abundant number, since it is smaller than the sum of its proper divisors (17605696620).

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

13197751188 is a wasteful number, since it uses less digits than its factorization.

13197751188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310543 (or 310541 counting only the distinct ones).

The product of its digits is 423360, while the sum is 51.

The spelling of 13197751188 in words is "thirteen billion, one hundred ninety-seven million, seven hundred fifty-one thousand, one hundred eighty-eight".

Divisors: 1 2 3 4 6 12 3583 7166 10749 14332 21498 42996 306953 613906 920859 1227812 1841718 3683436 1099812599 2199625198 3299437797 4399250396 6598875594 13197751188