All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars    
perplexus dot info

Home > Numbers
How many qualified numbers? (Posted on 2019-04-24) Difficulty: 2 of 5
If a square number has a digit sum of 2019, that number is called a qualified number. How many qualified numbers are there?

No Solution Yet Submitted by Danish Ahmed Khan    
No Rating

Comments: ( Back to comment list | You must be logged in to post comments.)
Solution solution | Comment 1 of 3
The digital root of 2019 is 3 and is therefore divisible by 3 but not my 9 and so can't be square, so there are no such numbers.
  Posted by Charlie on 2019-04-24 11:57:48
Please log in:
Login:
Password:
Remember me:
Sign up! | Forgot password


Search:
Search body:
Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (8)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:
Copyright © 2002 - 2024 by Animus Pactum Consulting. All rights reserved. Privacy Information