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10528225 = 523531193
BaseRepresentation
bin101000001010…
…010111100001
3201210220000021
4220022113201
510143400400
61013353441
7155326351
oct50122741
921726007
1010528225
115a41014
123638881
132248126
141580b61
15dce71a
hexa0a5e1

10528225 has 12 divisors (see below), whose sum is σ = 13102956. Its totient is φ = 8391680.

The previous prime is 10528211. The next prime is 10528229. The reversal of 10528225 is 52282501.

It can be written as a sum of positive squares in 6 ways, for example, as 345744 + 10182481 = 588^2 + 3191^2 .

It is not a de Polignac number, because 10528225 - 213 = 10520033 is a prime.

It is a super-2 number, since 2×105282252 = 221687043301250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10528225.

It is not an unprimeable number, because it can be changed into a prime (10528229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8229 + ... + 9421.

It is an arithmetic number, because the mean of its divisors is an integer number (1091913).

Almost surely, 210528225 is an apocalyptic number.

It is an amenable number.

10528225 is a deficient number, since it is larger than the sum of its proper divisors (2574731).

10528225 is a wasteful number, since it uses less digits than its factorization.

10528225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1556 (or 1551 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 10528225 is about 3244.7226383776. The cubic root of 10528225 is about 219.1719908557.

The spelling of 10528225 in words is "ten million, five hundred twenty-eight thousand, two hundred twenty-five".

Divisors: 1 5 25 353 1193 1765 5965 8825 29825 421129 2105645 10528225