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520289282 = 21274
BaseRepresentation
bin11111000000101…
…111110000000010
31100021000102201102
4133000233300002
52031143224112
6123343334402
715615246242
oct3700576002
91307012642
10520289282
11247765047
121262b1402
1383a3a0a6
144d157b22
1530a24bc2
hex1f02fc02

520289282 has 10 divisors (see below), whose sum is σ = 786627843. Its totient is φ = 258096258.

The previous prime is 520289249. The next prime is 520289311. The reversal of 520289282 is 282982025.

It can be written as a sum of positive squares in only one way, i.e., 260144641 + 260144641 = 16129^2 + 16129^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=16129.

It is a Duffinian number.

It is an unprimeable number.

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 4 ways as a sum of consecutive naturals, for example, 4096703 + ... + 4096829.

Almost surely, 2520289282 is an apocalyptic number.

520289282 is a deficient number, since it is larger than the sum of its proper divisors (266338561).

520289282 is an frugal number, since it uses more digits than its factorization.

520289282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 520289282 is about 22809.8505475157. The cubic root of 520289282 is about 804.2942424831.

The spelling of 520289282 in words is "five hundred twenty million, two hundred eighty-nine thousand, two hundred eighty-two".

Divisors: 1 2 127 254 16129 32258 2048383 4096766 260144641 520289282