Drome numbers
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In number theory, drome numbers are a class of four different types of hexadecimal numbers categorized by the order of their hexadecimal digits: plaindromes, nialpdromes, katadromes, and metadromes.[1]
| Name | Base-16 digit order
(hexadecimal) |
|---|---|
| plaindrome | nondecreasing (increasing or staying the same) |
| nialpdrome | nonincreasing (decreasing or staying the same) |
| katadrome | strict descending |
| metadrome | strict ascending |
See also[edit]
References[edit]
- ^ Weisstein, Eric W. (2002). CRC Concise Encyclopedia of Mathematics (2nd ed.). CRC Press. ISBN 978-1420035223.
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