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131082951 = 31013311307
BaseRepresentation
bin1111101000000…
…10101011000111
3100010122201000010
413310002223013
5232024123301
621001321303
73151121016
oct764025307
9303581003
10131082951
1167aa161a
1237a96233
132120769c
14135a2a7d
15b7945d6
hex7d02ac7

131082951 has 16 divisors (see below), whose sum is σ = 177176448. Its totient is φ = 86196000.

The previous prime is 131082901. The next prime is 131082967. The reversal of 131082951 is 159280131.

It is not a de Polignac number, because 131082951 - 211 = 131080903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131082901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99640 + ... + 100946.

It is an arithmetic number, because the mean of its divisors is an integer number (11073528).

Almost surely, 2131082951 is an apocalyptic number.

131082951 is a deficient number, since it is larger than the sum of its proper divisors (46093497).

131082951 is a wasteful number, since it uses less digits than its factorization.

131082951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1742.

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 131082951 is about 11449.1463000522. The cubic root of 131082951 is about 507.9824830693.

The spelling of 131082951 in words is "one hundred thirty-one million, eighty-two thousand, nine hundred fifty-one".

Divisors: 1 3 101 303 331 993 1307 3921 33431 100293 132007 396021 432617 1297851 43694317 131082951