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520085368 = 231121132797
BaseRepresentation
bin11110111111111…
…101111101111000
31100020122002000001
4132333331331320
52031120212433
6123335122344
715613436605
oct3677757570
91306562001
10520085368
11247635920
121262133b4
138399832a
144d1036ac
15309d457d
hex1effdf78

520085368 has 32 divisors (see below), whose sum is σ = 1064694960. Its totient is φ = 236206080.

The previous prime is 520085351. The next prime is 520085381. The reversal of 520085368 is 863580025.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184546 + ... + 187342.

Almost surely, 2520085368 is an apocalyptic number.

It is an amenable number.

520085368 is an abundant number, since it is smaller than the sum of its proper divisors (544609592).

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

520085368 is a wasteful number, since it uses less digits than its factorization.

520085368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4927 (or 4923 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 520085368 is about 22805.3802423902. The cubic root of 520085368 is about 804.1891546069.

The spelling of 520085368 in words is "five hundred twenty million, eighty-five thousand, three hundred sixty-eight".

Divisors: 1 2 4 8 11 22 44 88 2113 2797 4226 5594 8452 11188 16904 22376 23243 30767 46486 61534 92972 123068 185944 246136 5910061 11820122 23640244 47280488 65010671 130021342 260042684 520085368