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520313353 = 7109681931
BaseRepresentation
bin11111000000110…
…101101000001001
31100021001122201221
4133000311220021
52031200011403
6123344042041
715615406360
oct3700655011
91307048657
10520313353
1124778113a
12126303321
1383a48031
144d1627d7
1530a2bdbd
hex1f035a09

520313353 has 8 divisors (see below), whose sum is σ = 600100160. Its totient is φ = 441890640.

The previous prime is 520313333. The next prime is 520313371. The reversal of 520313353 is 353313025.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-520313353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520313303) 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, 340203 + ... + 341728.

It is an arithmetic number, because the mean of its divisors is an integer number (75012520).

Almost surely, 2520313353 is an apocalyptic number.

It is an amenable number.

520313353 is a deficient number, since it is larger than the sum of its proper divisors (79786807).

520313353 is a wasteful number, since it uses less digits than its factorization.

520313353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682047.

The product of its (nonzero) digits is 4050, while the sum is 25.

The square root of 520313353 is about 22810.3781862555. The cubic root of 520313353 is about 804.3066457549.

Adding to 520313353 its reverse (353313025), we get a palindrome (873626378).

The spelling of 520313353 in words is "five hundred twenty million, three hundred thirteen thousand, three hundred fifty-three".

Divisors: 1 7 109 763 681931 4773517 74330479 520313353