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520193589 = 3534732429
BaseRepresentation
bin11111000000011…
…000011000110101
31100020211120110020
4133000120120311
52031132143324
6123341315353
715614400246
oct3700303065
91306746406
10520193589
112476aa163
12126265b59
1383a05676
144d130ccd
1530a06679
hex1f018635

520193589 has 8 divisors (see below), whose sum is σ = 693742560. Its totient is φ = 346720176.

The previous prime is 520193567. The next prime is 520193593. The reversal of 520193589 is 985391025.

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

It is not a de Polignac number, because 520193589 - 224 = 503416373 is a prime.

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 self number, because there is not a number n which added to its sum of digits gives 520193589.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520193189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174 + ... + 32255.

It is an arithmetic number, because the mean of its divisors is an integer number (86717820).

Almost surely, 2520193589 is an apocalyptic number.

It is an amenable number.

520193589 is a deficient number, since it is larger than the sum of its proper divisors (173548971).

520193589 is a wasteful number, since it uses less digits than its factorization.

520193589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37779.

The product of its (nonzero) digits is 97200, while the sum is 42.

The square root of 520193589 is about 22807.7528266158. The cubic root of 520193589 is about 804.2449301418.

It can be divided in two parts, 5201 and 93589, that added together give a triangular number (98790 = T444).

The spelling of 520193589 in words is "five hundred twenty million, one hundred ninety-three thousand, five hundred eighty-nine".

Divisors: 1 3 5347 16041 32429 97287 173397863 520193589