Integers N = 2 * DigitSum(N) * DigitProduct(N)

 

N=2DS DP 1

 
Can you find others?

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

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About benvitalis

math grad - Interest: Number theory
This entry was posted in Number Puzzles and tagged , . Bookmark the permalink.

3 Responses to Integers N = 2 * DigitSum(N) * DigitProduct(N)

  1. pipo says:

    For N = 2 * S * P, all the possibilities are given above.
    If we take N = A * S * P, and A <100 and N 1000000 and A> 100.

    pipo

  2. pipo says:

    Sorry wrong copy: this one is better

    For N = 2 * S * P, all possibilities are given above.
    If we take N = A * S * P, where A< 100 and N < 1000000.
    Format (N, A, S, P)
    12 2 2 3
    111 37 1 3
    112 14 2 4
    135 1 15 9
    144 1 16 9
    216 2 12 9
    432 2 24 9
    2112 88 4 6
    13824 4 192 18
    27216 9 168 18
    81216 47 96 18
    93312 32 162 18
    124416 36 192 18
    132192 68 108 18
    186624 3 2304 27
    221184 96 128 18
    222912 86 144 18
    248832 3 3072 27
    316224 61 288 18
    422144 97 256 17

    pipo

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