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286166085 = 3519077739
BaseRepresentation
bin10001000011101…
…000110001000101
3201221110202001220
4101003220301011
51041224303320
644221310553
710043241312
oct2103506105
9657422056
10286166085
111375958a7
127ba05459
134739615a
142a011d09
151a1c9e40
hex110e8c45

286166085 has 8 divisors (see below), whose sum is σ = 457865760. Its totient is φ = 152621904.

The previous prime is 286166081. The next prime is 286166119. The reversal of 286166085 is 580661682.

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

It is not a de Polignac number, because 286166085 - 22 = 286166081 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (286166081) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 9538855 + ... + 9538884.

It is an arithmetic number, because the mean of its divisors is an integer number (57233220).

Almost surely, 2286166085 is an apocalyptic number.

It is an amenable number.

286166085 is a deficient number, since it is larger than the sum of its proper divisors (171699675).

286166085 is a wasteful number, since it uses less digits than its factorization.

286166085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19077747.

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 286166085 is about 16916.4442185703. Note that the first 3 decimals coincide. The cubic root of 286166085 is about 658.9807384823.

The spelling of 286166085 in words is "two hundred eighty-six million, one hundred sixty-six thousand, eighty-five".

Divisors: 1 3 5 15 19077739 57233217 95388695 286166085