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131657134 = 2779119039
BaseRepresentation
bin1111101100011…
…10110110101110
3100011201212122011
413312032312232
5232201012014
621021511434
73156032020
oct766166656
9304655564
10131657134
1168353a54
123811257a
1321378b3b
14136b2010
15b8597c4
hex7d8edae

131657134 has 16 divisors (see below), whose sum is σ = 228556800. Its totient is φ = 55709784.

The previous prime is 131657131. The next prime is 131657161. The reversal of 131657134 is 431756131.

It is a junction number, because it is equal to n+sod(n) for n = 131657096 and 131657105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131657131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58414 + ... + 60625.

It is an arithmetic number, because the mean of its divisors is an integer number (14284800).

Almost surely, 2131657134 is an apocalyptic number.

131657134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

131657134 is a deficient number, since it is larger than the sum of its proper divisors (96899666).

131657134 is a wasteful number, since it uses less digits than its factorization.

131657134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119127.

The product of its digits is 7560, while the sum is 31.

The square root of 131657134 is about 11474.1942636509. The cubic root of 131657134 is about 508.7231084072.

The spelling of 131657134 in words is "one hundred thirty-one million, six hundred fifty-seven thousand, one hundred thirty-four".

Divisors: 1 2 7 14 79 158 553 1106 119039 238078 833273 1666546 9404081 18808162 65828567 131657134