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86670693 = 3223418699
BaseRepresentation
bin1010010101001…
…11110101100101
320001002022211200
411022213311211
5134141430233
612333353113
72101455144
oct512476545
9201068750
1086670693
1144a17a7a
1225038799
1314c57745
14b72175b
157920313
hex52a7d65

86670693 has 12 divisors (see below), whose sum is σ = 130634400. Its totient is φ = 55268136.

The previous prime is 86670677. The next prime is 86670697. The reversal of 86670693 is 39607668.

It is not a de Polignac number, because 86670693 - 24 = 86670677 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86670697) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 209143 + ... + 209556.

It is an arithmetic number, because the mean of its divisors is an integer number (10886200).

Almost surely, 286670693 is an apocalyptic number.

It is an amenable number.

86670693 is a deficient number, since it is larger than the sum of its proper divisors (43963707).

86670693 is a wasteful number, since it uses less digits than its factorization.

86670693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418728 (or 418725 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 86670693 is about 9309.7096087902. The cubic root of 86670693 is about 442.5449844146.

The spelling of 86670693 in words is "eighty-six million, six hundred seventy thousand, six hundred ninety-three".

Divisors: 1 3 9 23 69 207 418699 1256097 3768291 9630077 28890231 86670693