Undulating number

An undulating number is a (natural ) number, the numbers are greater than, and smaller again in the display at any one base in the exchange, for example is 979342956 an undulating value ( to the base 10), and the representation of this base having at least two points. A number is called smooth undulating undulating, if only two different digits occur in it, so about 828282828 ( to the base 10). A two- fold smoothly undulating number is a number that is smooth undulating in two different places value systems, for example, is 10 times two smooth undulating as it is smooth undulating both in the binary system () and in the Ternärsystem (). 10 is the smallest doubly smooth undulating number. The concept of undulating figure is an imprint of science journalists Clifford A. Pickover.

Swell

  • Clifford A. Pickover: Is there a double smoothly undulating integer? In: Journal of Recreational Mathematics. Volume 22, No. 1, 1990, pp. 77-78.
  • Clifford A. Pickover: Dr. Googols wondrous world of numbers. dtv, Munich 2005, ISBN 3-423-34177-7.
  • WinFunktion Mathematics plus 18, manual, Kaarst 2010 bhv Publishing, p 394
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