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13231141402 = 2157274115373
BaseRepresentation
bin11000101001010001…
…10011001000011010
31021011002201121212011
430110220303020122
5204044133011102
610024525140134
7645610563163
oct142450631032
937132647764
1013231141402
11567a6a8406
1226930ba64a
13132b24066b
148d733676a
155268ad2d7
hex314a3321a

13231141402 has 16 divisors (see below), whose sum is σ = 19981710792. Its totient is φ = 6570607680.

The previous prime is 13231141387. The next prime is 13231141433. The reversal of 13231141402 is 20414113231.

It can be written as a sum of positive squares in 4 ways, for example, as 4673226321 + 8557915081 = 68361^2 + 92509^2 .

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, 852988 + ... + 868360.

Almost surely, 213231141402 is an apocalyptic number.

13231141402 is a deficient number, since it is larger than the sum of its proper divisors (6750569390).

13231141402 is a wasteful number, since it uses less digits than its factorization.

13231141402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18273.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 13231141402 its reverse (20414113231), we get a palindrome (33645254633).

The spelling of 13231141402 in words is "thirteen billion, two hundred thirty-one million, one hundred forty-one thousand, four hundred two".

Divisors: 1 2 157 314 2741 5482 15373 30746 430337 860674 2413561 4827122 42137393 84274786 6615570701 13231141402