perplexus.info :: Just Math : Sum Squares = 2009 Subtraction

Sum Squares = 2009 Subtraction (Posted on 2010-05-09)

Determine all possible value(s) of a positive integer n, such that the sum of the squares of the digits of n is equal to |n - 2009|.

Note: |x| denotes the absolute value of x.

Submitted by K Sengupta

Rating: 5.0000 (1 votes)

Solution: (Hide)

l880 and 2054 are the only possible solutions.
For an explanation, refer to the solution submitted by Charlie in this location.

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
re(2): computer solution -- and computer language speeds	Daniel	2010-05-10 10:29:06
re: computer solution -- and computer language speeds	Vee-Liem Veefessional	2010-05-10 03:08:21
computer solution -- and computer language speeds	Charlie	2010-05-09 14:16:40

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