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520528 = 2432533
BaseRepresentation
bin1111111000101010000
3222110000211
41333011100
5113124103
615053504
74265401
oct1770520
9873024
10520528
11326098
12211294
13152c08
14d79a8
15a436d
hex7f150

520528 has 10 divisors (see below), whose sum is σ = 1008554. Its totient is φ = 260256.

The previous prime is 520451. The next prime is 520529. The reversal of 520528 is 825025.

520528 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 399424 + 121104 = 632^2 + 348^2 .

It is a junction number, because it is equal to n+sod(n) for n = 520499 and 520508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16251 + ... + 16282.

2520528 is an apocalyptic number.

It is an amenable number.

520528 is a deficient number, since it is larger than the sum of its proper divisors (488026).

520528 is a wasteful number, since it uses less digits than its factorization.

520528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32541 (or 32535 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 520528 is about 721.4762643358. The cubic root of 520528 is about 80.4417231855.

The spelling of 520528 in words is "five hundred twenty thousand, five hundred twenty-eight".

Divisors: 1 2 4 8 16 32533 65066 130132 260264 520528