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520014313 = 72136731213
BaseRepresentation
bin11110111111101…
…100100111101001
31100020111110112101
4132333230213221
52031110424223
6123333413401
715613022500
oct3677544751
91306443471
10520014313
112475974a5
1212619a261
1383971ba0
144d0c5837
hex1efec9e9

520014313 has 24 divisors (see below), whose sum is σ = 652952328. Its totient is φ = 410489856.

The previous prime is 520014311. The next prime is 520014373. The reversal of 520014313 is 313410025.

It can be written as a sum of positive squares in 4 ways, for example, as 16999129 + 503015184 = 4123^2 + 22428^2 .

It is not a de Polignac number, because 520014313 - 21 = 520014311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (520014311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 428095 + ... + 429307.

It is an arithmetic number, because the mean of its divisors is an integer number (27206347).

Almost surely, 2520014313 is an apocalyptic number.

It is an amenable number.

520014313 is a deficient number, since it is larger than the sum of its proper divisors (132938015).

520014313 is a wasteful number, since it uses less digits than its factorization.

520014313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1913 (or 1906 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 520014313 is about 22803.8223331090. The cubic root of 520014313 is about 804.1525296819.

Adding to 520014313 its reverse (313410025), we get a palindrome (833424338).

The spelling of 520014313 in words is "five hundred twenty million, fourteen thousand, three hundred thirteen".