The number game i

http://itstoohard.com/puzzle/l0NrvxWy

Ends at 12:00 am on May 16, 2013 GMT+8

The game is Hero Academy.

Please do not share the answer and ruin the fun.

More hints may be given in the future.

Since people are complaining about my first 2 hints, here're the better ones.

1. There are 3 correct numbers.
   1a. It contains 2 and 3.
   1b. It contains 6 and 3.
   1c. It contains 8 and 3.

2. The sum of each digit is
   2a. Less than 14.
   2b. Less than 25.
   2c. More than 16.

3a. Each digit is different from each other.
3b. Each digit is different from each other.
3c. More than 1 of the digits are the same.

Early comers found the correct number via the easier version of 2b.

By the way, feel free to share up to 5 incorrect numbers if you want to help.