Essays, references, links, software.
Describes the history of the Arabic numeral system that is in use nearly all over the world today.
Describes the history of the Indian numeral system.
Answers to Frequently asked questions about special numbers.
Illustration of the Catalan numbers related to Euler's polygon division problem.
Published as math.NT/0006089, this note investigates numbers that are normal to no base whatsoever,...
The infinitesimal is the opposite of infinity, and mathematicians still argue over its existence. T...
Properties of triangular numbers including reversible, happy, harshad, highly composite, deficient,...
Discusses the uses and symbolism of various numbers in Hebrew literature.
Explains how these very large numbers (1 followed by a hundred zeroes, and 1 followed by a google o...
Includes a collection of randomly gathered numbers, curios, puzzles, palindromes and primes.
A list of constants with links to more detailed information.