The answer is -- 5 hours and 13 minutes !
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729 is a rational number.(729 can also be written as 729/1).
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No. 729/3=243; 729/9=81
Multiples of 729.
The square root of 729 is 27 and 729 squared is 531441
729 is divisible by 1, 3, 9, 27, 81, 243, 729.
3^6 = 729
729-103 = 626
36 = 729