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520102492 = 227131428853
BaseRepresentation
bin11111000000000…
…010001001011100
31100020122221111021
4133000002021130
52031121234432
6123335333524
715613540540
oct3700021134
91306587437
10520102492
11247647778
121262212a4
13839a3070
144d109a20
15309d9697
hex1f00225c

520102492 has 24 divisors (see below), whose sum is σ = 1120221536. Its totient is φ = 205754688.

The previous prime is 520102489. The next prime is 520102493. The reversal of 520102492 is 294201025.

It is a super-2 number, since 2×5201024922 = 541013204369220128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520102493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 714063 + ... + 714790.

Almost surely, 2520102492 is an apocalyptic number.

520102492 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

520102492 is an abundant number, since it is smaller than the sum of its proper divisors (600119044).

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

520102492 is a wasteful number, since it uses less digits than its factorization.

520102492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428877 (or 1428875 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 520102492 is about 22805.7556770215. The cubic root of 520102492 is about 804.1979805836.

The spelling of 520102492 in words is "five hundred twenty million, one hundred two thousand, four hundred ninety-two".

Divisors: 1 2 4 7 13 14 26 28 52 91 182 364 1428853 2857706 5715412 10001971 18575089 20003942 37150178 40007884 74300356 130025623 260051246 520102492