Implementation of https://xkcd.com/2835/
https://pypi.org/project/variable-base-factoradic/
pip install variable-base-factoradicfrom variable_base_factoradic import from_factoradic, to_factoradic
# Convert from decimal to factoradic
to_factoradic(5038)
# Out: "654320"
# Convert from factoradic to decimal
from_factoradic("654320")
# Out: 5038