Persistent Number
An 
-persistent number is a Positive Integer 
which contains the digits 0, 1, ..., 9, and for which 
,..., 
also share this property. No 
-persistent numbers exist. However, the number 
is2-persistent, since 
but 
, and the number 
is 18-persistent. There existsat least one -persistent number for each Positive Integer .
References
Honsberger, R. More Mathematical Morsels. Washington, DC: Math. Assoc. Amer., pp. 15-18, 1991.
- Stationary Value
- Statistic
- Statistical Test
- Statistics
- Staudt-Clausen Theorem
- Steenrod Algebra
- Steenrod-Eilenberg Axioms
- Steenrod's Realization Problem
- Steepest Descent Method
- Steffensen's Inequality
- Steffenson's Formula
- Steinbach Screw
- Steiner Chain
- Steiner Construction
- Steinerian Curve
- Steiner-Lehmus Theorem
- Steiner Points
- Steiner Quadruple System
- Steiner's Ellipse
- Steiner Set
- Steiner's Hypocycloid
- Steiner's Porism
- Steiner's Problem
- Steiner's Segment Problem
- Steiner's Theorem