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The Descending Integers (Posted on 2006-02-02) Difficulty: 3 of 5
Let us consider all possible positive whole numbers (not containing any leading zeroes) with the proviso that in each of the numbers, none of its digits can be repeated.

Note: any given number may or may not contain all the digits from 0 to 9 (Examples: 7; 20; 1056; 3067941825 etc.)

These numbers are now arranged in descending order of magnitude.

What would be the 200,136th number?

See The Solution Submitted by K Sengupta    
Rating: 2.8000 (5 votes)

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Acknowledgements Comment 8 of 8 |

Due acknowledgements are in order to:<o:p></o:p>

Charlie , for his speedy response in solving the problem by an analytic method and subsequent computer verification.<o:p></o:p>

goFish, for providing a  detailed method for solving the problem .<o:p></o:p>

Bill Matthews, for accurately solving the problem in his first post.
  Posted by K Sengupta on 2006-03-15 01:13:34
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