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86131025 = 524773303
BaseRepresentation
bin1010010001001…
…00000101010001
320000001220112222
411020210011101
5134022143100
612314030425
72064046601
oct510440521
9200056488
1086131025
1144689572
1224a18415
1314ac8c06
14b620c01
157865485
hex5224151

86131025 has 12 divisors (see below), whose sum is σ = 109076352. Its totient is φ = 67437840.

The previous prime is 86130997. The next prime is 86131039. The reversal of 86131025 is 52013168.

It is not a de Polignac number, because 86131025 - 210 = 86130001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86130985 and 86131003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35477 + ... + 37826.

It is an arithmetic number, because the mean of its divisors is an integer number (9089696).

Almost surely, 286131025 is an apocalyptic number.

It is an amenable number.

86131025 is a deficient number, since it is larger than the sum of its proper divisors (22945327).

86131025 is a wasteful number, since it uses less digits than its factorization.

86131025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73360 (or 73355 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 86131025 is about 9280.6802013646. The cubic root of 86131025 is about 441.6245472274.

The spelling of 86131025 in words is "eighty-six million, one hundred thirty-one thousand, twenty-five".

Divisors: 1 5 25 47 235 1175 73303 366515 1832575 3445241 17226205 86131025