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13231610990 = 2513233436831
BaseRepresentation
bin11000101001010101…
…00101110001101110
31021011010121111000022
430110222211301232
5204044243022430
610024543202142
7645614560223
oct142452456156
937133544008
1013231610990
11567a9991a4
1226932a6352
13132b376320
148d741994a
155269524e5
hex314aa5c6e

13231610990 has 32 divisors (see below), whose sum is σ = 25759109376. Its totient is φ = 4864538880.

The previous prime is 13231610981. The next prime is 13231610993. The reversal of 13231610990 is 9901613231.

13231610990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 13231610990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13231610993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188126 + ... + 248705.

It is an arithmetic number, because the mean of its divisors is an integer number (804972168).

Almost surely, 213231610990 is an apocalyptic number.

13231610990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13231610990 is a deficient number, since it is larger than the sum of its proper divisors (12527498386).

13231610990 is a wasteful number, since it uses less digits than its factorization.

13231610990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437084.

The product of its (nonzero) digits is 8748, while the sum is 35.

The spelling of 13231610990 in words is "thirteen billion, two hundred thirty-one million, six hundred ten thousand, nine hundred ninety".

Divisors: 1 2 5 10 13 26 65 130 233 466 1165 2330 3029 6058 15145 30290 436831 873662 2184155 4368310 5678803 11357606 28394015 56788030 101781623 203563246 508908115 1017816230 1323161099 2646322198 6615805495 13231610990