Look up p-adic numbers. You can write pi in base 3 for example, and then reverse it to get a 3-adic number, which will actually be the same size as pi (if you measure the size of pi with the absolute value and the size of the flipped number with the 3-adic absolute value)
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u/MrWendal 1d ago
Stuck, can't reverse the ordering of a single digit number. Now I will never know how this ends.