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86118378 = 23112312781
BaseRepresentation
bin1010010001000…
…00111111101010
320000001021012120
411020200333222
5134021242003
612313452110
72063664663
oct510407752
9200037176
1086118378
1144680015
1224a11036
1314ac3228
14b61a36a
157861853
hex5220fea

86118378 has 16 divisors (see below), whose sum is σ = 172403616. Its totient is φ = 28678320.

The previous prime is 86118343. The next prime is 86118401. The reversal of 86118378 is 87381168.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348 + ... + 13128.

It is an arithmetic number, because the mean of its divisors is an integer number (10775226).

Almost surely, 286118378 is an apocalyptic number.

86118378 is an abundant number, since it is smaller than the sum of its proper divisors (86285238).

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

86118378 is a wasteful number, since it uses less digits than its factorization.

86118378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13909.

The product of its digits is 64512, while the sum is 42.

The square root of 86118378 is about 9279.9988146551. The cubic root of 86118378 is about 441.6029309398.

The spelling of 86118378 in words is "eighty-six million, one hundred eighteen thousand, three hundred seventy-eight".

Divisors: 1 2 3 6 1123 2246 3369 6738 12781 25562 38343 76686 14353063 28706126 43059189 86118378