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86105799 = 32131743291
BaseRepresentation
bin1010010000111…
…01111011000111
320000000121221200
411020131323013
5134020341144
612313313543
72063613213
oct510357307
9200017850
1086105799
114467161a
1224a058b3
1314aba5a0
14b615943
15785cc69
hex521dec7

86105799 has 24 divisors (see below), whose sum is σ = 141824592. Its totient is φ = 49870080.

The previous prime is 86105797. The next prime is 86105807. The reversal of 86105799 is 99750168.

It is not a de Polignac number, because 86105799 - 21 = 86105797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86105797) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19657 + ... + 23634.

It is an arithmetic number, because the mean of its divisors is an integer number (5909358).

Almost surely, 286105799 is an apocalyptic number.

86105799 is a deficient number, since it is larger than the sum of its proper divisors (55718793).

86105799 is a wasteful number, since it uses less digits than its factorization.

86105799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43327 (or 43324 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The square root of 86105799 is about 9279.3210419728. The cubic root of 86105799 is about 441.5814287785.

The spelling of 86105799 in words is "eighty-six million, one hundred five thousand, seven hundred ninety-nine".

Divisors: 1 3 9 13 17 39 51 117 153 221 663 1989 43291 129873 389619 562783 735947 1688349 2207841 5065047 6623523 9567311 28701933 86105799