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520460213 = 7213817049
BaseRepresentation
bin11111000001011…
…001011110110101
31100021100010012012
4133001121132311
52031214211323
6123351134005
715616560500
oct3701313665
91307303165
10520460213
11247871509
12126374305
1383a99b30
144d1a0137
1530a5a678
hex1f0597b5

520460213 has 12 divisors (see below), whose sum is σ = 652005900. Its totient is φ = 411792192.

The previous prime is 520460207. The next prime is 520460231. The reversal of 520460213 is 312064025.

It can be written as a sum of positive squares in 2 ways, for example, as 282004849 + 238455364 = 16793^2 + 15442^2 .

It is not a de Polignac number, because 520460213 - 24 = 520460197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520460203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 407888 + ... + 409161.

It is an arithmetic number, because the mean of its divisors is an integer number (54333825).

Almost surely, 2520460213 is an apocalyptic number.

It is an amenable number.

520460213 is a deficient number, since it is larger than the sum of its proper divisors (131545687).

520460213 is a wasteful number, since it uses less digits than its factorization.

520460213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817076 (or 817069 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 520460213 is about 22813.5971078653. The cubic root of 520460213 is about 804.3823112885.

The spelling of 520460213 in words is "five hundred twenty million, four hundred sixty thousand, two hundred thirteen".

Divisors: 1 7 13 49 91 637 817049 5719343 10621637 40035401 74351459 520460213