# Copeland-Erdős constant

The *Copeland-Erdős constant* is the concatenation^{} of “0.” with the base 10 representations of the prime numbers^{} in order. Its value is approximately 0.235711131719232931374143… listed in A033308 of Sloane’s OEIS.

The larger Smarandache-wellin numbers^{} approximate the value of this constant multiplied by the appropriate power of 10.

Its continued fraction^{} is

$0+\frac{1}{4+\frac{1}{4+\frac{1}{8+\mathrm{\cdots}}}}$

and is listed in A030168 of the OEIS.

In base 10, this is a normal number^{}, 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 |