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86768985 = 355784599
BaseRepresentation
bin1010010101111…
…11110101011001
320001021022200010
411022333311121
5134203101420
612335432133
72102344542
oct512776531
9201238603
1086768985
1144a84906
1225085649
1314c903c4
14b7494c9
15793e4e0
hex52bfd59

86768985 has 8 divisors (see below), whose sum is σ = 138830400. Its totient is φ = 46276784.

The previous prime is 86768977. The next prime is 86768989. The reversal of 86768985 is 58986768.

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 86768985 - 23 = 86768977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86768989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2892285 + ... + 2892314.

It is an arithmetic number, because the mean of its divisors is an integer number (17353800).

Almost surely, 286768985 is an apocalyptic number.

It is an amenable number.

86768985 is a deficient number, since it is larger than the sum of its proper divisors (52061415).

86768985 is a wasteful number, since it uses less digits than its factorization.

86768985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5784607.

The product of its digits is 5806080, while the sum is 57.

The square root of 86768985 is about 9314.9871175434. The cubic root of 86768985 is about 442.7122158694.

The spelling of 86768985 in words is "eighty-six million, seven hundred sixty-eight thousand, nine hundred eighty-five".

Divisors: 1 3 5 15 5784599 17353797 28922995 86768985