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86138023 = 1932631697
BaseRepresentation
bin1010010001001…
…01110010100111
320000002021011011
411020211302213
5134022404043
612314123051
72064106156
oct510456247
9200067134
1086138023
1144693854
1224a20487
1314acc15a
14b62359d
15786759d
hex5225ca7

86138023 has 8 divisors (see below), whose sum is σ = 86964768. Its totient is φ = 85315584.

The previous prime is 86138011. The next prime is 86138051. The reversal of 86138023 is 32083168.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86138023 - 25 = 86137991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86136023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49911 + ... + 51607.

It is an arithmetic number, because the mean of its divisors is an integer number (10870596).

Almost surely, 286138023 is an apocalyptic number.

86138023 is a deficient number, since it is larger than the sum of its proper divisors (826745).

86138023 is a wasteful number, since it uses less digits than its factorization.

86138023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2153.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 86138023 is about 9281.0572134860. The cubic root of 86138023 is about 441.6365073192.

The spelling of 86138023 in words is "eighty-six million, one hundred thirty-eight thousand, twenty-three".

Divisors: 1 193 263 1697 50759 327521 446311 86138023