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82985286 = 2313830881
BaseRepresentation
bin1001111001001…
…00000101000110
312210011002102010
410330210011012
5132221012121
612122355050
72025235416
oct474440506
9183132363
1082985286
114293008a
122395ba86
1314267127
14b042646
157443376
hex4f24146

82985286 has 8 divisors (see below), whose sum is σ = 165970584. Its totient is φ = 27661760.

The previous prime is 82985251. The next prime is 82985303. The reversal of 82985286 is 68258928.

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

82985286 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6915435 + ... + 6915446.

It is an arithmetic number, because the mean of its divisors is an integer number (20746323).

Almost surely, 282985286 is an apocalyptic number.

82985286 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.

82985286 is a wasteful number, since it uses less digits than its factorization.

82985286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13830886.

The product of its digits is 552960, while the sum is 48.

The square root of 82985286 is about 9109.6260076910. The cubic root of 82985286 is about 436.1812891130.

The spelling of 82985286 in words is "eighty-two million, nine hundred eighty-five thousand, two hundred eighty-six".

Divisors: 1 2 3 6 13830881 27661762 41492643 82985286