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520200663 = 31767152239
BaseRepresentation
bin11111000000011…
…010000111010111
31100020211221011020
4133000122013113
52031132410123
6123341412223
715614430003
oct3700320727
91306757136
10520200663
11247704504
1212626a073
1383a08958
144d133703
1530a087e3
hex1f01a1d7

520200663 has 16 divisors (see below), whose sum is σ = 745367040. Its totient is φ = 321526656.

The previous prime is 520200643. The next prime is 520200727. The reversal of 520200663 is 366002025.

It is not a de Polignac number, because 520200663 - 210 = 520199639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520200623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72703 + ... + 79536.

It is an arithmetic number, because the mean of its divisors is an integer number (46585440).

Almost surely, 2520200663 is an apocalyptic number.

520200663 is a deficient number, since it is larger than the sum of its proper divisors (225166377).

520200663 is a wasteful number, since it uses less digits than its factorization.

520200663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152326.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 520200663 is about 22807.9079049351. The cubic root of 520200663 is about 804.2485757095.

Adding to 520200663 its reverse (366002025), we get a palindrome (886202688).

The spelling of 520200663 in words is "five hundred twenty million, two hundred thousand, six hundred sixty-three".

Divisors: 1 3 17 51 67 201 1139 3417 152239 456717 2588063 7764189 10200013 30600039 173400221 520200663