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131540092 = 2232885023
BaseRepresentation
bin1111101011100…
…10010001111100
3100011111221002021
413311302101330
5232133240332
621015205524
73155033545
oct765622174
9304457067
10131540092
1168284022
12380768a4
1321337798
14136814cc
15b834c97
hex7d7247c

131540092 has 6 divisors (see below), whose sum is σ = 230195168. Its totient is φ = 65770044.

The previous prime is 131540089. The next prime is 131540093. The reversal of 131540092 is 290045131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131540093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16442508 + ... + 16442515.

Almost surely, 2131540092 is an apocalyptic number.

It is an amenable number.

131540092 is a deficient number, since it is larger than the sum of its proper divisors (98655076).

131540092 is a wasteful number, since it uses less digits than its factorization.

131540092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32885027 (or 32885025 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 131540092 is about 11469.0929022308. The cubic root of 131540092 is about 508.5723136343.

The spelling of 131540092 in words is "one hundred thirty-one million, five hundred forty thousand, ninety-two".

Divisors: 1 2 4 32885023 65770046 131540092