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528825 = 35211641
BaseRepresentation
bin10000001000110111001
3222212102010
42001012321
5113410300
615200133
74331523
oct2010671
9885363
10528825
11331350
12216049
1315691b
14daa13
15a6a50
hex811b9

528825 has 24 divisors (see below), whose sum is σ = 955296. Its totient is φ = 256000.

The previous prime is 528823. The next prime is 528833.

528825 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 528825 - 21 = 528823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 528792 and 528801.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 528825.

It is not an unprimeable number, because it can be changed into a prime (528821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 505 + ... + 1145.

It is an arithmetic number, because the mean of its divisors is an integer number (39804).

2528825 is an apocalyptic number.

528825 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

528825 is a deficient number, since it is larger than the sum of its proper divisors (426471).

528825 is a wasteful number, since it uses less digits than its factorization.

528825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665 (or 660 counting only the distinct ones).

The product of its digits is 6400, while the sum is 30.

The square root of 528825 is about 727.2035478461. The cubic root of 528825 is about 80.8668747565.

It can be divided in two parts, 528 and 825, that multiplied together give a square (435600 = 6602).

The spelling of 528825 in words is "five hundred twenty-eight thousand, eight hundred twenty-five".

Divisors: 1 3 5 11 15 25 33 55 75 165 275 641 825 1923 3205 7051 9615 16025 21153 35255 48075 105765 176275 528825