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86180105 = 5111982469
BaseRepresentation
bin1010010001100…
…00000100001001
320000011101212202
411020300010021
5134030230410
612315045545
72064342644
oct510600411
9200141782
1086180105
1144712430
1224a408b5
1314b1535b
14b634a5b
157874ca5
hex5230109

86180105 has 16 divisors (see below), whose sum is σ = 118756800. Its totient is φ = 59376960.

The previous prime is 86180071. The next prime is 86180111. The reversal of 86180105 is 50108168.

It is not a de Polignac number, because 86180105 - 210 = 86179081 is a prime.

It is a super-2 number, since 2×861801052 = 14854020995622050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40190 + ... + 42279.

It is an arithmetic number, because the mean of its divisors is an integer number (7422300).

Almost surely, 286180105 is an apocalyptic number.

It is an amenable number.

86180105 is a deficient number, since it is larger than the sum of its proper divisors (32576695).

86180105 is a wasteful number, since it uses less digits than its factorization.

86180105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82504.

The product of its (nonzero) digits is 1920, while the sum is 29.

The square root of 86180105 is about 9283.3240275238. The cubic root of 86180105 is about 441.7084148662.

The spelling of 86180105 in words is "eighty-six million, one hundred eighty thousand, one hundred five".

Divisors: 1 5 11 19 55 95 209 1045 82469 412345 907159 1566911 4535795 7834555 17236021 86180105