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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)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
AcknowledgementsK Sengupta2006-03-15 01:13:34
SolutionCorrect Solution by handBill Matthews2006-02-04 07:56:17
I see my error...Dej Mar2006-02-03 01:25:39
My calculationsDej Mar2006-02-03 01:23:22
If my calculations have been correct,,,,Dej Mar2006-02-02 21:32:34
Solutionre: solution -- computer confirmationCharlie2006-02-02 12:45:28
re: solution I agreegoFish2006-02-02 12:38:48
SolutionsolutionCharlie2006-02-02 12:23:32
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