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4528825 = 52723697
BaseRepresentation
bin10001010001101010111001
322112002101021
4101101222321
52124410300
6241022441
753331400
oct21215271
98462337
104528825
112613634
121624a21
13c274a2
1485c637
155e6d1a
hex451ab9

4528825 has 18 divisors (see below), whose sum is σ = 6534366. Its totient is φ = 3104640.

The previous prime is 4528813. The next prime is 4528829. The reversal of 4528825 is 5288254.

It can be written as a sum of positive squares in 3 ways, for example, as 441 + 4528384 = 21^2 + 2128^2 .

It is not a de Polignac number, because 4528825 - 29 = 4528313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4528829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 624 + ... + 3073.

Almost surely, 24528825 is an apocalyptic number.

It is an amenable number.

4528825 is a deficient number, since it is larger than the sum of its proper divisors (2005541).

4528825 is a wasteful number, since it uses less digits than its factorization.

4528825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3721 (or 3709 counting only the distinct ones).

The product of its digits is 25600, while the sum is 34.

The square root of 4528825 is about 2128.1036158984. The cubic root of 4528825 is about 165.4481237422.

It can be divided in two parts, 452 and 8825, that multiplied together give a triangular number (3988900 = T2824).

The spelling of 4528825 in words is "four million, five hundred twenty-eight thousand, eight hundred twenty-five".

Divisors: 1 5 7 25 35 49 175 245 1225 3697 18485 25879 92425 129395 181153 646975 905765 4528825