try this:
45000270000405
answer:
9000054000081

or this:
907500003300000003
answer:
302500001100000001

Edited by author 10.10.2011 10:41

907500003300000003

right is 1

I'm stuck on test 33.

Please, explain, is 9000054000081 really correct answer?
9000054000081 = 3^2 + 100000600009^1.
It obviously has even divisors: (2+1) * (1+1) = 6.
They are 1, 3, 9, 100000600009, 300001800027, 900005400081.
And 302500001100000001 is prime, thus it has 2 divisors (1 and self).

Where am I wrong?

302500001100000001=550000001^2
And is has 3 uneven divisors: 1, 550000001, 302500001100000001.
And every X=Y^2 has uneven number of uneven divisors.

Edited by author 31.05.2012 18:57

To clarify: IFullMetalLeon is not telling the truth; the correct answer to 907500003300000003 is 302500001100000001.

and you could try 100102036020202601, the answer is 10010202601