Problem #284

Shifted digit
Public 12/15/15 6xp Math 55.6%

Consider the numbers in base-12 that can be written with the decimal digits only (0 to 9).
Of those, find the smallest number which, after a ROR 1 (ROtate to Right) operation,  gives a number equal to 8 times the original number.

Example: 2497 becomes 7249 which is 3 times the original

Answer format: the number in base-12

See also: Circular shift - Wikipedia, the free encyclopedia

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