%%
%% The LaTeX Companion, 3ed
%%
%% Example A-2-3 on page II-650 in "fmtcount --- Specially formatted counters and numbers".
%%
%% Copyright (C) 2022 Frank Mittelbach
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3c
%% of this license or (at your option) any later version.
%%
%% See https://www.latex-project.org/lppl.txt for details.
%%

\documentclass{tlc3exa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{105.0pt}


  \setlength\parindent{0pt}

%StartShownPreambleCommands
\usepackage{fmtcount}  \newcounter{test} \setcounter{test}{29}
%StopShownPreambleCommands

\begin{document}
\padzeroes[4]
\decimal{test} \binary{test} \octal{test} \hexadecimal{test} \par
Unpadded: \padzeroes[0]
\decimal{test} \binary{test} \octal{test} \hexadecimal{test}
\end{document}