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Digit Powers (Posted on 2024-06-04) Difficulty: 3 of 5
There are many numbers that can be expressed as the sum of powers of their digits. For example, 23+42=24, 42+33=43, 62+33=63, 81+92=89, 11+32+53=135, and so forth. (The exponents must be positive integers.)

How many such numbers exist?

No Solution Yet Submitted by K Sengupta    
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  Subject Author Date
Some Thoughtscomputer explorationCharlie2024-06-04 09:52:30
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