Base e is optimal under a certain metric, and 3 is closest to e. https://en.m.wikipedia.org/wiki/Non-integer_base_of_numeration https://en.m.wikipedia.org/wiki

Base e is optimal under a certain metric, and 3 is closest to e. https://en.m.wikipedia.org/wiki/Non-integer_base_of_numeration https://en.m.wikipedia.org/wiki/Non-integer_base_of_numerati...