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10042225 = 52401689
BaseRepresentation
bin100110010011…
…101101110001
3200220012100021
4212103231301
510032322400
6555123441
7151233424
oct46235561
920805307
1010042225
115739966
123443581
132107b5b
1414959bb
15d3571a
hex993b71

10042225 has 6 divisors (see below), whose sum is σ = 12452390. Its totient is φ = 8033760.

The previous prime is 10042199. The next prime is 10042289. The reversal of 10042225 is 52224001.

It can be written as a sum of positive squares in 3 ways, for example, as 31329 + 10010896 = 177^2 + 3164^2 .

It is not a de Polignac number, because 10042225 - 221 = 7945073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10042199 and 10042208.

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, 200820 + ... + 200869.

Almost surely, 210042225 is an apocalyptic number.

It is an amenable number.

10042225 is a deficient number, since it is larger than the sum of its proper divisors (2410165).

10042225 is an equidigital number, since it uses as much as digits as its factorization.

10042225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401699 (or 401694 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 10042225 is about 3168.9469859876. The cubic root of 10042225 is about 215.7462798786.

Adding to 10042225 its reverse (52224001), we get a palindrome (62266226).

The spelling of 10042225 in words is "ten million, forty-two thousand, two hundred twenty-five".

Divisors: 1 5 25 401689 2008445 10042225