Suggestions for Nth

The following packages have something in common with the package Nth. The packages are ordered in decreasing similarity.

Package arabic: Read a lower-case roman number
Package tuple: Expandable operations for tuples of numbers
Package binhex: Convert numbers into binary, octal and hexadecimal
Package comma: Formats a number by inserting commas
Package telprint: Format German phone numbers
Package uniquecounter: Provides unlimited unique counter
Package romannum: Generate roman numerals instead of arabic digits
Package fmtcount: Display the value of a LaTeX counter in a variety of formats
Package alphalph: Convert numbers to letters
Package makebase: Typeset counters in a different base
Package numname: Convert a number to its English expression
Package sepnum: Print numbers in a friendly format
Package ncccomma: Use comma as decimal separator in mathematics
Package zahl2string: Format numbers as German words
Package ziffer: Conversion of punctuation in maths mode
Package engord: Converts numbers to English ordinal numbers
Package moreenum: More enumeration options
Package sillypage: John Cleese’s Silly Walk as page numbering style
Package phonenumbers: Typesetting telephone numbers with LaTeX
Package itnumpar: Spell numbers in words (Italian)
Package numprint: Print numbers with separators and exponent if necessary
Package circledsteps: Typeset circled numbers
Package fnumprint: Print a number in appropriate format
Package romanbar: Write roman number with bars
Package decimalcomma: Comma for decimal numbers
Package zhnumber: Typeset Chinese representations of numbers
Package dectab: Align columns on a decimal point
Package hex: Print a counter in hexadecimal
Package format: Display a counter as a fixed-point number
Package ruler: A typographic ruler for TeX
Package olsak-misc: Collection of plain TeX macros written by Petr Olšák