[afarrell]

By that, do you mean <=5 of them, or given that your hand has 5 bits, <32 of them?

[DoubleCribble]

Given the rotating power of your average radius and ulna, isn't it possible to go all the way to <64 on single hand binary? (whole hand binary)

[bbcbasic]

65 if you include sticking up the middle finger.