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86411287 = 641134807
BaseRepresentation
bin1010010011010…
…00100000010111
320000121011000001
411021220200113
5134110130122
612324032131
72066324644
oct511504027
9200534001
1086411287
1144860096
1224b32647
1314b96651
14b694dcb
1578bd527
hex5268817

86411287 has 4 divisors (see below), whose sum is σ = 86546736. Its totient is φ = 86275840.

The previous prime is 86411279. The next prime is 86411321. The reversal of 86411287 is 78211468.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86411287 - 23 = 86411279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86418287) 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, 66763 + ... + 68044.

It is an arithmetic number, because the mean of its divisors is an integer number (21636684).

Almost surely, 286411287 is an apocalyptic number.

86411287 is a deficient number, since it is larger than the sum of its proper divisors (135449).

86411287 is a wasteful number, since it uses less digits than its factorization.

86411287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135448.

The product of its digits is 21504, while the sum is 37.

The square root of 86411287 is about 9295.7671550012. The cubic root of 86411287 is about 442.1030297688.

The spelling of 86411287 in words is "eighty-six million, four hundred eleven thousand, two hundred eighty-seven".

Divisors: 1 641 134807 86411287