Copeland-Erdős constant

The Copeland-Erdős constant is the concatenationMathworldPlanetmath of “0.” with the base 10 representations of the prime numbersMathworldPlanetmath in order. Its value is approximately 0.235711131719232931374143… listed in A033308 of Sloane’s OEIS.

The larger Smarandache-wellin numbersMathworldPlanetmath approximate the value of this constant multiplied by the appropriate power of 10.


and is listed in A030168 of the OEIS.

In base 10, this is a normal numberMathworldPlanetmath, a fact proven by A.H. Copeland and Paul Erdős in 1946 (hence the name of the constant).

Title Copeland-Erdős constant
Canonical name CopelandErdHosConstant
Date of creation 2013-03-22 15:55:06
Last modified on 2013-03-22 15:55:06
Owner Mravinci (12996)
Last modified by Mravinci (12996)
Numerical id 10
Author Mravinci (12996)
Entry type Definition
Classification msc 11A63
Synonym Copeland-Erdos constant
Synonym Copeland-Erdös constant
Synonym Copeland Erdos constant
Synonym Copeland Erdös constant