Specific Numbers - Musharof Chy
Arabic numerals
Describes the history of the Arabic numeral system that is in use nearly all over the world today.
FAQ on Special Numbers
Answers to Frequently asked questions about special numbers.
Catalan Number -- MathWorld
Illustration of the Catalan numbers related to Euler's polygon division problem.
Absolutely Abnormal Numbers
Published as math.NT/0006089, this note investigates numbers that are normal to no base whatsoever,...
Stewy's Site
The infinitesimal is the opposite of infinity, and mathematicians still argue over its existence. T...
Triangular Numbers
Properties of triangular numbers including reversible, happy, harshad, highly composite, deficient,...
Jewish Encyclopedia: Numbers and Numerals
Discusses the uses and symbolism of various numbers in Hebrew literature.
Ask Dr. Math: History of the Terms Google and Googleplex
Explains how these very large numbers (1 followed by a hundred zeroes, and 1 followed by a google o...
World of Numbers
Includes a collection of randomly gathered numbers, curios, puzzles, palindromes and primes.
Wikipedia - Mathematical constant
A list of constants with links to more detailed information.