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520813327 = 25712231657
BaseRepresentation
bin11111000010101…
…111101100001111
31100022000001120111
4133002233230033
52031312011302
6123402500451
715622561126
oct3702575417
91308001514
10520813327
11247a92841
12126504727
1383b91788
144d252abd
1530aca0d7
hex1f0afb0f

520813327 has 8 divisors (see below), whose sum is σ = 523583136. Its totient is φ = 518049792.

The previous prime is 520813301. The next prime is 520813331. The reversal of 520813327 is 723318025.

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

It is a cyclic number.

It is not a de Polignac number, because 520813327 - 211 = 520811279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520813387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 313483 + ... + 315139.

It is an arithmetic number, because the mean of its divisors is an integer number (65447892).

Almost surely, 2520813327 is an apocalyptic number.

520813327 is a deficient number, since it is larger than the sum of its proper divisors (2769809).

520813327 is a wasteful number, since it uses less digits than its factorization.

520813327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3137.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 520813327 is about 22821.3349083703. The cubic root of 520813327 is about 804.5641852248.

The spelling of 520813327 in words is "five hundred twenty million, eight hundred thirteen thousand, three hundred twenty-seven".

Divisors: 1 257 1223 1657 314311 425849 2026511 520813327