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525028 = 227171103
BaseRepresentation
bin10000000001011100100
3222200012111
42000023210
5113300103
615130404
74314460
oct2001344
9880174
10525028
11329509
12213a04
13154c8a
14d94a0
15a586d
hex802e4

525028 has 24 divisors (see below), whose sum is σ = 1112832. Its totient is φ = 211584.

The previous prime is 525017. The next prime is 525029. The reversal of 525028 is 820525.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (525029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76 + ... + 1027.

It is an arithmetic number, because the mean of its divisors is an integer number (46368).

2525028 is an apocalyptic number.

It is an amenable number.

525028 is an abundant number, since it is smaller than the sum of its proper divisors (587804).

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

525028 is a wasteful number, since it uses less digits than its factorization.

525028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131 (or 1129 counting only the distinct ones).

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

The square root of 525028 is about 724.5881588875. The cubic root of 525028 is about 80.6728664345.

The spelling of 525028 in words is "five hundred twenty-five thousand, twenty-eight".

Divisors: 1 2 4 7 14 17 28 34 68 119 238 476 1103 2206 4412 7721 15442 18751 30884 37502 75004 131257 262514 525028