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520768 = 2679103
BaseRepresentation
bin1111111001001000000
3222110100201
41333021000
5113131033
615054544
74266163
oct1771100
9873321
10520768
11326296
12211454
13153061
14d7ada
15a447d
hex7f240

520768 has 28 divisors (see below), whose sum is σ = 1056640. Its totient is φ = 254592.

The previous prime is 520763. The next prime is 520787. The reversal of 520768 is 867025.

520768 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (520763) by changing a digit.

520768 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5005 + ... + 5107.

2520768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (528320).

520768 is an abundant number, since it is smaller than the sum of its proper divisors (535872).

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

520768 is a wasteful number, since it uses less digits than its factorization.

520768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 520768 is about 721.6425708064. The cubic root of 520768 is about 80.4540843823.

The spelling of 520768 in words is "five hundred twenty thousand, seven hundred sixty-eight".

Divisors: 1 2 4 8 16 32 64 79 103 158 206 316 412 632 824 1264 1648 2528 3296 5056 6592 8137 16274 32548 65096 130192 260384 520768