Fastest Codeslinger 2008 Problem

If you want to try your hand at the Fastest Codeslinger 2008 problem, read on. Solutions will be posted later.

There are a large number of 9 digit integers in the range 123456789 to 987654321 where each digit only appears once.

The first number is 123456789, the second is 123456798, the third is 123456879 and so on.

No digit can repeat so 122345675 is not a valid number in this sequence. Also, none of the numbers will contain a 0.

What is the 100,000th number in this sequence?

Your entry must calculate the number.