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13231131104 = 251992077753
BaseRepresentation
bin11000101001010001…
…10000100111100000
31021011002201002201202
430110220300213200
5204044132143404
610024525020332
7645610521152
oct142450604740
937132632652
1013231131104
11567a6a06a4
1226930b46a8
13132b238a79
148d7332ad2
155268aa21e
hex314a309e0

13231131104 has 24 divisors (see below), whose sum is σ = 26179700400. Its totient is φ = 6582318336.

The previous prime is 13231131103. The next prime is 13231131107. The reversal of 13231131104 is 40113113231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13231131101) 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 3 ways as a sum of consecutive naturals, for example, 1032509 + ... + 1045244.

It is an arithmetic number, because the mean of its divisors is an integer number (1090820850).

Almost surely, 213231131104 is an apocalyptic number.

It is an amenable number.

13231131104 is a deficient number, since it is larger than the sum of its proper divisors (12948569296).

13231131104 is a wasteful number, since it uses less digits than its factorization.

13231131104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2077962 (or 2077954 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 13231131104 its reverse (40113113231), we get a palindrome (53344244335).

The spelling of 13231131104 in words is "thirteen billion, two hundred thirty-one million, one hundred thirty-one thousand, one hundred four".

Divisors: 1 2 4 8 16 32 199 398 796 1592 3184 6368 2077753 4155506 8311012 16622024 33244048 66488096 413472847 826945694 1653891388 3307782776 6615565552 13231131104