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83290686 = 2313881781
BaseRepresentation
bin1001111011011…
…10101000111110
312210201121100020
410331232220332
5132310300221
612133113010
72030646663
oct475565076
9183647306
1083290686
1143019586
1223a88766
131434313b
14b0c1a6a
1574a3ac6
hex4f6ea3e

83290686 has 8 divisors (see below), whose sum is σ = 166581384. Its totient is φ = 27763560.

The previous prime is 83290679. The next prime is 83290687. The reversal of 83290686 is 68609238.

It is a sphenic number, since it is the product of 3 distinct primes.

83290686 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83290687) 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 3 ways as a sum of consecutive naturals, for example, 6940885 + ... + 6940896.

It is an arithmetic number, because the mean of its divisors is an integer number (20822673).

Almost surely, 283290686 is an apocalyptic number.

83290686 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

83290686 is a wasteful number, since it uses less digits than its factorization.

83290686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13881786.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 83290686 is about 9126.3731021693. The cubic root of 83290686 is about 436.7157078991.

The spelling of 83290686 in words is "eighty-three million, two hundred ninety thousand, six hundred eighty-six".

Divisors: 1 2 3 6 13881781 27763562 41645343 83290686