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518768085 = 351114921101
BaseRepresentation
bin11110111010111…
…100010111010101
31100011011011000210
4132322330113111
52030301034320
6123251000033
715566312253
oct3672742725
91304134023
10518768085
11246916160
12125899019
1383626884
144cc7d5d3
15308240e0
hex1eebc5d5

518768085 has 32 divisors (see below), whose sum is σ = 911606400. Its totient is φ = 249824000.

The previous prime is 518768071. The next prime is 518768087. The reversal of 518768085 is 580867815.

It is not a de Polignac number, because 518768085 - 25 = 518768053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518768087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14035 + ... + 35135.

It is an arithmetic number, because the mean of its divisors is an integer number (28487700).

Almost surely, 2518768085 is an apocalyptic number.

518768085 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

518768085 is a deficient number, since it is larger than the sum of its proper divisors (392838315).

518768085 is a wasteful number, since it uses less digits than its factorization.

518768085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21269.

The product of its (nonzero) digits is 537600, while the sum is 48.

The square root of 518768085 is about 22776.4809617289. The cubic root of 518768085 is about 803.5096249215.

The spelling of 518768085 in words is "five hundred eighteen million, seven hundred sixty-eight thousand, eighty-five".

Divisors: 1 3 5 11 15 33 55 149 165 447 745 1639 2235 4917 8195 21101 24585 63303 105505 232111 316515 696333 1160555 3144049 3481665 9432147 15720245 34584539 47160735 103753617 172922695 518768085