Search: id:A046760
Results 1-1 of 1 results found.

%I A046760
%S A046760 4,6,8,9,12,18,20,22,24,26,28,30,33,34,36,38,39,40,42,44,45,46,48,50,
%T A046760 51,52,54,55,56,57,58,60,62,63,65,66,68,69,70,72,74,75,76,77,78,80,82,
%U A046760 84,85,86,87,88,90,91,92,93,94,95,96,98,99,100,102,104,108,110,114
%N A046760 Wasteful numbers.
%C A046760 Write n as product of primes raised to powers, let D(n) = number of digits 
               in product, l(n) = number of digits in n; sequence gives n such that 
               D(n)>l(n).
%H A046760 J.-P. Delahaye, <a href="http://www.pourlascience.com/numeros/pls-258/
               logique.htm">Les chasseurs de nombres premiers</a>
%H A046760 R. G. E. Pinch, <a href="http://www.chalcedon.demon.co.uk/publish.html#62">
               Economical numbers.</a>
%H A046760 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               WastefulNumber.html">Link to a section of The World of Mathematics.</
               a>
%e A046760 For n=125=5^3, l(n)=3 but D(n)=2.
%Y A046760 Cf. A046758, A046759.
%Y A046760 Sequence in context: A062002 A028958 A036310 this_sequence A115684 A020201 
               A161760
%Y A046760 Adjacent sequences: A046757 A046758 A046759 this_sequence A046761 A046762 
               A046763
%K A046760 nonn,nice,base,easy
%O A046760 1,1
%A A046760 N. J. A. Sloane (njas(AT)research.att.com).
%E A046760 More terms from Eric Weisstein (eric(AT)weisstein.com).

Search completed in 0.001 seconds