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520072233 = 3230975079
BaseRepresentation
bin11110111111111…
…010110000101001
31100020121101222120
4132333322300221
52031114302413
6123334541453
715613353402
oct3677726051
91306541876
10520072233
11247626a6a
12126207889
1383992365
144d0dc9a9
15309d0723
hex1effac29

520072233 has 8 divisors (see below), whose sum is σ = 693739200. Its totient is φ = 346560048.

The previous prime is 520072141. The next prime is 520072261. The reversal of 520072233 is 332270025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 520072233 - 217 = 519941161 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (520072733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30613 + ... + 44466.

It is an arithmetic number, because the mean of its divisors is an integer number (86717400).

Almost surely, 2520072233 is an apocalyptic number.

It is an amenable number.

520072233 is a deficient number, since it is larger than the sum of its proper divisors (173666967).

520072233 is a wasteful number, since it uses less digits than its factorization.

520072233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77391.

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 520072233 is about 22805.0922602826. The cubic root of 520072233 is about 804.1823844918.

The spelling of 520072233 in words is "five hundred twenty million, seventy-two thousand, two hundred thirty-three".

Divisors: 1 3 2309 6927 75079 225237 173357411 520072233