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86107975 = 5217232383
BaseRepresentation
bin1010010000111…
…10011101000111
320000000201221021
411020132131013
5134020423400
612313332011
72063622442
oct510363507
9200021837
1086107975
1144673218
1224a07007
1314abb585
14b616659
15785d71a
hex521e747

86107975 has 36 divisors (see below), whose sum is σ = 118492416. Its totient is φ = 61853440.

The previous prime is 86107961. The next prime is 86107979. The reversal of 86107975 is 57970168.

It is not a de Polignac number, because 86107975 - 217 = 85976903 is a prime.

It is a super-3 number, since 3×861079753 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86107979) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 224634 + ... + 225016.

It is an arithmetic number, because the mean of its divisors is an integer number (3291456).

Almost surely, 286107975 is an apocalyptic number.

86107975 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

86107975 is a deficient number, since it is larger than the sum of its proper divisors (32384441).

86107975 is a wasteful number, since it uses less digits than its factorization.

86107975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456 (or 428 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 43.

The square root of 86107975 is about 9279.4382911898. The cubic root of 86107975 is about 441.5851485167.

The spelling of 86107975 in words is "eighty-six million, one hundred seven thousand, nine hundred seventy-five".

Divisors: 1 5 17 23 25 85 115 383 391 425 529 575 1915 1955 2645 6511 8809 8993 9575 9775 13225 32555 44045 44965 149753 162775 202607 220225 224825 748765 1013035 3444319 3743825 5065175 17221595 86107975