Search a number
-
+
520104325 = 52131600321
BaseRepresentation
bin11111000000000…
…010100110000101
31100020200001000011
4133000002212011
52031121314300
6123335350221
715613546066
oct3700024605
91306601004
10520104325
11247649094
12126222371
13839a3b50
144d10a56d
15309d9eba
hex1f002985

520104325 has 12 divisors (see below), whose sum is σ = 694539748. Its totient is φ = 384076800.

The previous prime is 520104283. The next prime is 520104331. The reversal of 520104325 is 523401025.

It can be written as a sum of positive squares in 6 ways, for example, as 228070404 + 292033921 = 15102^2 + 17089^2 .

It is not a de Polignac number, because 520104325 - 215 = 520071557 is a prime.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 520104296 and 520104305.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 799836 + ... + 800485.

Almost surely, 2520104325 is an apocalyptic number.

It is an amenable number.

520104325 is a deficient number, since it is larger than the sum of its proper divisors (174435423).

520104325 is a wasteful number, since it uses less digits than its factorization.

520104325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600344 (or 1600339 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 520104325 is about 22805.7958642096. The cubic root of 520104325 is about 804.1989253289.

The spelling of 520104325 in words is "five hundred twenty million, one hundred four thousand, three hundred twenty-five".

Divisors: 1 5 13 25 65 325 1600321 8001605 20804173 40008025 104020865 520104325