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10531025 = 52421241
BaseRepresentation
bin101000001011…
…000011010001
3201211000211222
4220023003101
510143443100
61013414425
7155340461
oct50130321
921730758
1010531025
115a4312a
12363a415
13224949b
141581ba1
15dd0485
hexa0b0d1

10531025 has 6 divisors (see below), whose sum is σ = 13058502. Its totient is φ = 8424800.

The previous prime is 10531013. The next prime is 10531039. The reversal of 10531025 is 52013501.

It can be written as a sum of positive squares in 3 ways, for example, as 1555009 + 8976016 = 1247^2 + 2996^2 .

It is not a de Polignac number, because 10531025 - 24 = 10531009 is a prime.

It is a super-2 number, since 2×105310252 = 221804975101250, 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 = 10530994 and 10531012.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 210596 + ... + 210645.

It is an arithmetic number, because the mean of its divisors is an integer number (2176417).

Almost surely, 210531025 is an apocalyptic number.

It is an amenable number.

10531025 is a deficient number, since it is larger than the sum of its proper divisors (2527477).

10531025 is an equidigital number, since it uses as much as digits as its factorization.

10531025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421251 (or 421246 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 10531025 is about 3245.1540795469. The cubic root of 10531025 is about 219.1914188593.

Adding to 10531025 its reverse (52013501), we get a palindrome (62544526).

The spelling of 10531025 in words is "ten million, five hundred thirty-one thousand, twenty-five".

Divisors: 1 5 25 421241 2106205 10531025