Archived Help in a riddle :s

[Absolutio]

Someone gave me this riddle which I don't quite understand:

"Here is how it works;
Each letter represents a different number. The numbers can not be negative, decimals, or double digit. (example. 0,2,5,9 can be used, and -2,1.3,16 can not be used)

It is one letter per number, no letters share a number. In the equation you place the number in every spot the letter was.


UNITED
+STATES
AMERICA


Give me the letters and numbers, or type out the equation in numbers."

 

[Xiphias]

http://mathforum.org/library/drmath/view/60417.html

 

[freaky2]

Can this be possible? There are more letters than one digit numbers...

 

[Absolutio]

that's what i said, so now this is what he said:
"Ok, you caught the boarder of the box you are working in. You're working in base 10, the solution requires base 11 or higher. A base (number) means you use up to that many numbers, so base 5 uses only 0-4

0,1,2,3,4,10,11,12,13,14,20,21

base eleven uses an additional number before 10 comes up.
0,1,2,3,4,5,6,7,8,9,#,10,11,12,13,14,15,16,17,18,19,1#,20"
<hr noshade size="1">
http://en.wikipedia.org/wiki/Undecimal
<hr noshade size="1">

I think i've got it:
8#2653
+961659
1754201

the digits are undecimal: 0,1,2,3,4,5,6,7,8,9,#,10,11,12,13,14,15,16,17,18,19,1#,20,...

 

[Firepelt00]

Wow. Your good. XD I only know how to solve one riddle and that is it.