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13831193112 = 2331152390883
BaseRepresentation
bin11001110000110011…
…10100001000011000
31022200220211102001120
430320121310020120
5211311241134422
610204242245240
7666515126112
oct147031641030
938626742046
1013831193112
115958391110
122820056820
1313c5656949
14952cd43b2
1555e3db45c
hex338674218

13831193112 has 32 divisors (see below), whose sum is σ = 37721436480. Its totient is φ = 4191270560.

The previous prime is 13831193063. The next prime is 13831193113. The reversal of 13831193112 is 21139113831.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13831193113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26195178 + ... + 26195705.

It is an arithmetic number, because the mean of its divisors is an integer number (1178794890).

Almost surely, 213831193112 is an apocalyptic number.

13831193112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13831193112 is an abundant number, since it is smaller than the sum of its proper divisors (23890243368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13831193112 is a wasteful number, since it uses less digits than its factorization.

13831193112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52390903 (or 52390899 counting only the distinct ones).

The product of its digits is 3888, while the sum is 33.

The spelling of 13831193112 in words is "thirteen billion, eight hundred thirty-one million, one hundred ninety-three thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 66 88 132 264 52390883 104781766 157172649 209563532 314345298 419127064 576299713 628690596 1152599426 1257381192 1728899139 2305198852 3457798278 4610397704 6915596556 13831193112