IvanNiven 2006-11-04 18:13:47 2007-10-12 18:37:25 Biography % this is the default PlanetMath preamble. as your knowledge % of TeX increases, you will probably want to edit this, but % it should be fine as is for beginners. % almost certainly you want these \usepackage{amssymb} \usepackage{amsmath} \usepackage{amsfonts} % used for TeXing text within eps files %\usepackage{psfrag} % need this for including graphics (\includegraphics) %\usepackage{graphicx} % for neatly defining theorems and propositions %\usepackage{amsthm} % making logically defined graphics %\usepackage{xypic} % there are many more packages, add them here as you need them % define commands here {\em Ivan Morton Niven} (25 October 1915 - 9 May 1999) was a Canadian mathematician who helped proved the conjectured answers for Waring's problem. In 1997 he presented a paper on integers that are divisible by their digit sum, but the name given them by Shri Dattathreya Ramachandra Kaprekar, ``Harshad numbers,'' has stuck more than ``Niven numbers.'' Asteroid 12513 bears Niven's name.