Binary sits in the opposite extreme, minimum times tables, but day-to-day numbers become unwieldily long too fast. Ten digit sequences are necessary to represen

Binary sits in the opposite extreme, minimum times tables, but day-to-day numbers become unwieldily long too fast. Ten digit sequences are necessary to represent amounts equivalent to a decimal 1000. I think the balance is around halfway between 10 and 2, for bases that result both in reasonably short sequences to handle and easy to learn arithmetic tables.