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13115825889 = 353462117851
BaseRepresentation
bin11000011011100001…
…11001111011100001
31020212001201222201020
430031300321323201
5203330122412024
610005245400053
7643010452305
oct141560717341
936761658636
1013115825889
1156205a6131
122660569029
131310396a2a
148c5cb9d05
1551b6d0979
hex30dc39ee1

13115825889 has 16 divisors (see below), whose sum is σ = 17822579904. Its totient is φ = 8576568000.

The previous prime is 13115825857. The next prime is 13115825939. The reversal of 13115825889 is 98852851131.

It is not a de Polignac number, because 13115825889 - 25 = 13115825857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13115825809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 725814 + ... + 743664.

It is an arithmetic number, because the mean of its divisors is an integer number (1113911244).

Almost surely, 213115825889 is an apocalyptic number.

It is an amenable number.

13115825889 is a deficient number, since it is larger than the sum of its proper divisors (4706754015).

13115825889 is a wasteful number, since it uses less digits than its factorization.

13115825889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22528.

The product of its digits is 691200, while the sum is 51.

The spelling of 13115825889 in words is "thirteen billion, one hundred fifteen million, eight hundred twenty-five thousand, eight hundred eighty-nine".

Divisors: 1 3 53 159 4621 13863 17851 53553 244913 734739 946103 2838309 82489471 247468413 4371941963 13115825889