n-digit numbers with n factors, each with a different number of digits
N. J. A. Sloane
njas at research.att.com
Mon Dec 11 17:53:09 CET 2006
Joshua, Just to get the ball rolling, I am adding this:
Comments and corrections welcomed!
Neil
%I A125315
%S A125315 1,11,121,1111,14641,112211,1771561,11117777,123187801,1464143923,
%T A125315 25937424601
%N A125315 Smallest n-digit number that has exactly n factors, each with a different num
ber of digits.
%O A125315 0,2
%K A125315 nonn,base
%A A125315 Joshua Zucker (joshua.zucker(AT)gmail.com), Dec 11 2006
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