sentences:  Zero's bit reversal is still zero; it can be divided by 2 any number of times, and its binary expansion does not contain any 1s, so it always comes first.Although 0 is divisible by 2 more times than any other number, it is not straightforward to quantify exactly how many times that is.For any nonzero integer "n", one may define the 2-adic order of "n" to be the number of times "n" is divisible by 2.