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131418232 = 23111493389
BaseRepresentation
bin1111101010101…
…00100001111000
3100011021201220221
413311110201320
5232120340412
621012425424
73154015351
oct765244170
9304251827
10131418232
1168200510
1238018274
13212c418a
141364cd28
15b80db07
hex7d54878

131418232 has 16 divisors (see below), whose sum is σ = 268810200. Its totient is φ = 59735520.

The previous prime is 131418229. The next prime is 131418233. The reversal of 131418232 is 232814131.

It is a happy number.

131418232 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 131418197 and 131418206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131418233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 746607 + ... + 746782.

Almost surely, 2131418232 is an apocalyptic number.

It is an amenable number.

131418232 is an abundant number, since it is smaller than the sum of its proper divisors (137391968).

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

131418232 is a wasteful number, since it uses less digits than its factorization.

131418232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493406 (or 1493402 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

The square root of 131418232 is about 11463.7791325548. The cubic root of 131418232 is about 508.4152163595.

The spelling of 131418232 in words is "one hundred thirty-one million, four hundred eighteen thousand, two hundred thirty-two".

Divisors: 1 2 4 8 11 22 44 88 1493389 2986778 5973556 11947112 16427279 32854558 65709116 131418232