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86438087 = 197957587
BaseRepresentation
bin1010010011011…
…11000011000111
320000122111202122
411021233003013
5134112004322
612324400155
72066466041
oct511570307
9200574678
1086438087
114487923a
1224b4605b
1314ba58c8
14b6a0a91
1578c6442
hex526f0c7

86438087 has 8 divisors (see below), whose sum is σ = 92140800. Its totient is φ = 80850744.

The previous prime is 86438083. The next prime is 86438113. The reversal of 86438087 is 78083468.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 86438087 - 22 = 86438083 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 (86438083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27293 + ... + 30294.

It is an arithmetic number, because the mean of its divisors is an integer number (11517600).

Almost surely, 286438087 is an apocalyptic number.

86438087 is a deficient number, since it is larger than the sum of its proper divisors (5702713).

86438087 is a wasteful number, since it uses less digits than its factorization.

86438087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57685.

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 86438087 is about 9297.2085595624. The cubic root of 86438087 is about 442.1487303438.

The spelling of 86438087 in words is "eighty-six million, four hundred thirty-eight thousand, eighty-seven".

Divisors: 1 19 79 1501 57587 1094153 4549373 86438087