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520412790 = 23517347093
BaseRepresentation
bin11111000001001…
…101111001110110
31100021020201010210
4133001031321312
52031211202130
6123350130250
715616302312
oct3701157166
91307221123
10520412790
11247839917
12126350986
1383a81381
144d18ab42
1530a4b5b0
hex1f04de76

520412790 has 16 divisors (see below), whose sum is σ = 1248990768. Its totient is φ = 138776736.

The previous prime is 520412773. The next prime is 520412813. The reversal of 520412790 is 97214025.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 17347093 = 520412790 / (5 + 2 + 0 + 4 + 1 + 2 + 7 + 9 + 0).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8673517 + ... + 8673576.

It is an arithmetic number, because the mean of its divisors is an integer number (78061923).

Almost surely, 2520412790 is an apocalyptic number.

520412790 is an abundant number, since it is smaller than the sum of its proper divisors (728577978).

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

520412790 is a wasteful number, since it uses less digits than its factorization.

520412790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17347103.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 520412790 is about 22812.5577259544. The cubic root of 520412790 is about 804.3578794619.

The spelling of 520412790 in words is "five hundred twenty million, four hundred twelve thousand, seven hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 17347093 34694186 52041279 86735465 104082558 173470930 260206395 520412790