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10515325 = 52420613
BaseRepresentation
bin101000000111…
…001101111101
3201210020022111
4220013031331
510142442300
61013214021
7155243632
oct50071575
921706274
1010515325
115a32357
123631311
1322422b2
14157a189
15dca9ba
hexa0737d

10515325 has 6 divisors (see below), whose sum is σ = 13039034. Its totient is φ = 8412240.

The previous prime is 10515319. The next prime is 10515383. The reversal of 10515325 is 52351501.

10515325 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 3 ways, for example, as 4761 + 10510564 = 69^2 + 3242^2 .

It is not a de Polignac number, because 10515325 - 29 = 10514813 is a prime.

It is a super-2 number, since 2×105153252 = 221144119711250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10515296 and 10515305.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 210282 + ... + 210331.

Almost surely, 210515325 is an apocalyptic number.

It is an amenable number.

10515325 is a deficient number, since it is larger than the sum of its proper divisors (2523709).

10515325 is an equidigital number, since it uses as much as digits as its factorization.

10515325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420623 (or 420618 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 10515325 is about 3242.7341858376. The cubic root of 10515325 is about 219.0824387479.

Adding to 10515325 its reverse (52351501), we get a palindrome (62866826).

The spelling of 10515325 in words is "ten million, five hundred fifteen thousand, three hundred twenty-five".

Divisors: 1 5 25 420613 2103065 10515325