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86105806 = 2181123773
BaseRepresentation
bin1010010000111…
…01111011001110
320000000121221221
411020131323032
5134020341211
612313313554
72063613223
oct510357316
9200017857
1086105806
1144671626
1224a058ba
1314aba5a7
14b61594a
15785cc71
hex521dece

86105806 has 8 divisors (see below), whose sum is σ = 129235464. Its totient is φ = 43027320.

The previous prime is 86105797. The next prime is 86105807. The reversal of 86105806 is 60850168.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86105807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8265 + ... + 15508.

It is an arithmetic number, because the mean of its divisors is an integer number (16154433).

Almost surely, 286105806 is an apocalyptic number.

86105806 is a deficient number, since it is larger than the sum of its proper divisors (43129658).

86105806 is a wasteful number, since it uses less digits than its factorization.

86105806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25586.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 86105806 is about 9279.3214191556. The cubic root of 86105806 is about 441.5814407447.

The spelling of 86105806 in words is "eighty-six million, one hundred five thousand, eight hundred six".

Divisors: 1 2 1811 3622 23773 47546 43052903 86105806