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520060531 = 1372337897
BaseRepresentation
bin11110111111110…
…111111001110011
31100020120210221011
4132333313321303
52031113414111
6123334411351
715613304314
oct3677677163
91306523834
10520060531
112476191a1
12126200b57
1383989c33
144d0d860b
15309cc021
hex1eff7e73

520060531 has 4 divisors (see below), whose sum is σ = 520112152. Its totient is φ = 520008912.

The previous prime is 520060517. The next prime is 520060561. The reversal of 520060531 is 135060025.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 520060531 - 219 = 519536243 is a prime.

It is a super-2 number, since 2×5200605312 = 540925911808003922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520060501) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5226 + ... + 32671.

It is an arithmetic number, because the mean of its divisors is an integer number (130028038).

Almost surely, 2520060531 is an apocalyptic number.

520060531 is a deficient number, since it is larger than the sum of its proper divisors (51621).

520060531 is a wasteful number, since it uses less digits than its factorization.

520060531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51620.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 520060531 is about 22804.8356933349. The cubic root of 520060531 is about 804.1763528855.

The spelling of 520060531 in words is "five hundred twenty million, sixty thousand, five hundred thirty-one".

Divisors: 1 13723 37897 520060531