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86087039 = 181475619
BaseRepresentation
bin1010010000110…
…01010101111111
312222222200012212
411020121111333
5134014241124
612313051035
72063504423
oct510312577
9188880185
1086087039
1144659515
12249b6a7b
1314ab1b9c
14b60cb83
15785740e
hex521957f

86087039 has 4 divisors (see below), whose sum is σ = 86562840. Its totient is φ = 85611240.

The previous prime is 86087021. The next prime is 86087041. The reversal of 86087039 is 93078068.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-86087039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86086987 and 86087005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86087059) 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, 237629 + ... + 237990.

It is an arithmetic number, because the mean of its divisors is an integer number (21640710).

Almost surely, 286087039 is an apocalyptic number.

86087039 is a deficient number, since it is larger than the sum of its proper divisors (475801).

86087039 is a wasteful number, since it uses less digits than its factorization.

86087039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475800.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 86087039 is about 9278.3101370885. The cubic root of 86087039 is about 441.5493571124.

The spelling of 86087039 in words is "eighty-six million, eighty-seven thousand, thirty-nine".

Divisors: 1 181 475619 86087039