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13231231310 = 25111673731931
BaseRepresentation
bin11000101001010010…
…01001000101001110
31021011002220012012002
430110221021011032
5204044143400220
610024531112302
7645611416253
oct142451110516
937132805162
1013231231310
11567a759a10
122693142692
13132b27256b
148d735b42a
155268c9c75
hex314a4914e

13231231310 has 64 divisors (see below), whose sum is σ = 26220547584. Its totient is φ = 4767254400.

The previous prime is 13231231301. The next prime is 13231231327. The reversal of 13231231310 is 1313213231.

It is a super-2 number, since 2×132312313102 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6851045 + ... + 6852975.

It is an arithmetic number, because the mean of its divisors is an integer number (409696056).

Almost surely, 213231231310 is an apocalyptic number.

13231231310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13231231310 is a deficient number, since it is larger than the sum of its proper divisors (12989316274).

13231231310 is a wasteful number, since it uses less digits than its factorization.

13231231310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2489.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 13231231310 its reverse (1313213231), we get a palindrome (14544444541).

The spelling of 13231231310 in words is "thirteen billion, two hundred thirty-one million, two hundred thirty-one thousand, three hundred ten".

Divisors: 1 2 5 10 11 22 55 110 167 334 373 746 835 1670 1837 1865 1931 3674 3730 3862 4103 8206 9185 9655 18370 19310 20515 21241 41030 42482 62291 106205 124582 212410 311455 322477 622910 644954 685201 720263 1370402 1440526 1612385 3224770 3426005 3547247 3601315 6852010 7094494 7202630 7922893 15845786 17736235 35472470 39614465 79228930 120283921 240567842 601419605 1202839210 1323123131 2646246262 6615615655 13231231310