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86648065 = 57171071361
BaseRepresentation
bin1010010101000…
…10010100000001
320001001011210121
411022202110001
5134140214230
612333100241
72101332160
oct512422401
9201034717
1086648065
1144a01a79
1225027681
1314c4a35a
14b7173d7
15791877a
hex52a2501

86648065 has 32 divisors (see below), whose sum is σ = 127090944. Its totient is φ = 55357440.

The previous prime is 86648059. The next prime is 86648087. The reversal of 86648065 is 56084668.

It is not a de Polignac number, because 86648065 - 25 = 86648033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62985 + ... + 64345.

It is an arithmetic number, because the mean of its divisors is an integer number (3971592).

Almost surely, 286648065 is an apocalyptic number.

86648065 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

86648065 is a deficient number, since it is larger than the sum of its proper divisors (40442879).

86648065 is a wasteful number, since it uses less digits than its factorization.

86648065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1497.

The product of its (nonzero) digits is 276480, while the sum is 43.

The square root of 86648065 is about 9308.4942391345. The cubic root of 86648065 is about 442.5064678212.

The spelling of 86648065 in words is "eighty-six million, six hundred forty-eight thousand, sixty-five".

Divisors: 1 5 7 17 35 85 107 119 535 595 749 1361 1819 3745 6805 9095 9527 12733 23137 47635 63665 115685 145627 161959 728135 809795 1019389 2475659 5096945 12378295 17329613 86648065