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520418322 = 2321922832
BaseRepresentation
bin11111000001001…
…111010000010010
31100021020222201200
4133001033100102
52031211341242
6123350212030
715616324404
oct3701172022
91307228650
10520418322
11247842a96
12126354016
1383a83a48
144d18cb74
1530a4d04c
hex1f04f412

520418322 has 54 divisors (see below), whose sum is σ = 1194262407. Its totient is φ = 163761912.

The previous prime is 520418321. The next prime is 520418461. The reversal of 520418322 is 223814025.

520418322 is a `hidden beast` number, since 520 + 41 + 83 + 22 = 666.

It can be written as a sum of positive squares in only one way, i.e., 260209161 + 260209161 = 16131^2 + 16131^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=16131.

It is not an unprimeable number, because it can be changed into a prime (520418321) 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 26 ways as a sum of consecutive naturals, for example, 1838793 + ... + 1839075.

Almost surely, 2520418322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520418322

520418322 is an abundant number, since it is smaller than the sum of its proper divisors (673844085).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520418322 is a wasteful number, since it uses less digits than its factorization.

520418322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612 (or 307 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 520418322 is about 22812.6789746404. The cubic root of 520418322 is about 804.3607295661.

The spelling of 520418322 in words is "five hundred twenty million, four hundred eighteen thousand, three hundred twenty-two".

Divisors: 1 2 3 6 9 18 19 38 57 114 171 283 342 361 566 722 849 1083 1698 2166 2547 3249 5094 5377 6498 10754 16131 32262 48393 80089 96786 102163 160178 204326 240267 306489 480534 612978 720801 919467 1441602 1521691 1838934 3043382 4565073 9130146 13695219 27390438 28912129 57824258 86736387 173472774 260209161 520418322