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86417860 = 2254320893
BaseRepresentation
bin1010010011010…
…10000111000100
320000121111000111
411021222013010
5134110332420
612324122404
72066353054
oct511520704
9200544014
1086417860
1144865021
1224b36404
1314b99639
14b697564
1578c045a
hex526a1c4

86417860 has 12 divisors (see below), whose sum is σ = 181477548. Its totient is φ = 34567136.

The previous prime is 86417809. The next prime is 86417861. The reversal of 86417860 is 6871468.

It can be written as a sum of positive squares in 2 ways, for example, as 67338436 + 19079424 = 8206^2 + 4368^2 .

It is not an unprimeable number, because it can be changed into a prime (86417861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2160427 + ... + 2160466.

It is an arithmetic number, because the mean of its divisors is an integer number (15123129).

Almost surely, 286417860 is an apocalyptic number.

It is an amenable number.

86417860 is an abundant number, since it is smaller than the sum of its proper divisors (95059688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86417860 is a wasteful number, since it uses less digits than its factorization.

86417860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4320902 (or 4320900 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 86417860 is about 9296.1206962905. The cubic root of 86417860 is about 442.1142392208.

The spelling of 86417860 in words is "eighty-six million, four hundred seventeen thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 4320893 8641786 17283572 21604465 43208930 86417860