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131862942 = 23229252611
BaseRepresentation
bin1111101110000…
…01000110011110
3100012010022221200
413313001012132
5232224103232
621030140330
73160550031
oct767010636
9305108850
10131862942
1168484642
12381b16a6
132141b713
1413727018
15b89a77c
hex7dc119e

131862942 has 24 divisors (see below), whose sum is σ = 295556040. Its totient is φ = 42438480.

The previous prime is 131862917. The next prime is 131862943. The reversal of 131862942 is 249268131.

131862942 is a `hidden beast` number, since 13 + 18 + 629 + 4 + 2 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 131862897 and 131862906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131862943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125784 + ... + 126827.

It is an arithmetic number, because the mean of its divisors is an integer number (12314835).

Almost surely, 2131862942 is an apocalyptic number.

131862942 is an abundant number, since it is smaller than the sum of its proper divisors (163693098).

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

131862942 is a wasteful number, since it uses less digits than its factorization.

131862942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252648 (or 252645 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 131862942 is about 11483.1590601193. The cubic root of 131862942 is about 508.9880510754.

The spelling of 131862942 in words is "one hundred thirty-one million, eight hundred sixty-two thousand, nine hundred forty-two".

Divisors: 1 2 3 6 9 18 29 58 87 174 261 522 252611 505222 757833 1515666 2273499 4546998 7325719 14651438 21977157 43954314 65931471 131862942