man number (Jeux) - number
NAME
number - convert Arabic numerals to English
SYNOPSIS
[-l] [number ...]
DESCRIPTION
The utility prints the English equivalent of the number to the standard output, with each 10^3 magnitude displayed on a separate line. If no argument is specified, reads lines from the standard input.
The options are as follows:
- -l
- Display the number on a single line.
BUGS
Although understand fractions, it doesn't understand exponents.