I suggest the CTYPE property of the prop tool to be able to accept simple expressions, not just numbers.
I mean, it would help if i type 2^29, and it will automatically produces 536870912, and sums maybe.
He does and that's exactly why he wants expressions.
For now I'll just drop it here that PROP accepts hexadecimals for ctype, that should take care of most of your needs for expressions.
didnt notice you can just type this in the console, it will happily return any expression you type in. Even math.random()*(number) for random number from 0 to number