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131130036 = 22331214167
BaseRepresentation
bin1111101000011…
…10001010110100
3100010202002121000
413310032022310
5232032130121
621002323300
73151405212
oct764161264
9303662530
10131130036
1168023a34
1237ab9530
1321222c4b
14135b5cb2
15b7a3526
hex7d0e2b4

131130036 has 24 divisors (see below), whose sum is σ = 339967040. Its totient is φ = 43709976.

The previous prime is 131130029. The next prime is 131130071. The reversal of 131130036 is 630031131.

It is a super-2 number, since 2×1311300362 = 34390172682722592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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, 606976 + ... + 607191.

Almost surely, 2131130036 is an apocalyptic number.

It is an amenable number.

131130036 is an abundant number, since it is smaller than the sum of its proper divisors (208837004).

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

131130036 is a wasteful number, since it uses less digits than its factorization.

131130036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214180 (or 1214172 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 131130036 is about 11451.2023822828. The cubic root of 131130036 is about 508.0432982294.

Adding to 131130036 its reverse (630031131), we get a palindrome (761161167).

The spelling of 131130036 in words is "one hundred thirty-one million, one hundred thirty thousand, thirty-six".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 1214167 2428334 3642501 4856668 7285002 10927503 14570004 21855006 32782509 43710012 65565018 131130036