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131031120200 = 23521063616327
BaseRepresentation
bin111101000001000010…
…0000011100101001000
3110112012210011120121212
41322002010003211020
54121322431321300
6140110031352252
712316034100461
oct1720204034510
9415183146555
10131031120200
115062a718a92
122148a082688
13c4826b9826
1464b03d7d68
15361d640935
hex1e82103948

131031120200 has 48 divisors (see below), whose sum is σ = 304934441280. Its totient is φ = 52363056960.

The previous prime is 131031120173. The next prime is 131031120247. The reversal of 131031120200 is 2021130131.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 95564 + ... + 520763.

It is an arithmetic number, because the mean of its divisors is an integer number (6352800860).

Almost surely, 2131031120200 is an apocalyptic number.

131031120200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131031120200 is an abundant number, since it is smaller than the sum of its proper divisors (173903321080).

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

131031120200 is a wasteful number, since it uses less digits than its factorization.

131031120200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617406 (or 617397 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 131031120200 its reverse (2021130131), we get a palindrome (133052250331).

The spelling of 131031120200 in words is "one hundred thirty-one billion, thirty-one million, one hundred twenty thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 1063 2126 4252 5315 8504 10630 21260 26575 42520 53150 106300 212600 616327 1232654 2465308 3081635 4930616 6163270 12326540 15408175 24653080 30816350 61632700 123265400 655155601 1310311202 2620622404 3275778005 5241244808 6551556010 13103112020 16378890025 26206224040 32757780050 65515560100 131031120200