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A077516 Largest n-digit number beginning with n and having n divisors, or 0 if no such number exists. 1

%I

%S 1,29,361,4997,0,699964,0,89999995,999887641,1099999504,0,

%T 129999999988,0,14999999996224,159999933195664,1699999999999998,0,

%U 189999999999999477,0,20999999999999999817,219999996968515384384,2299999999999999765504,0,249999999999999999999988

%N Largest n-digit number beginning with n and having n divisors, or 0 if no such number exists.

%e a(4) = 4989 = 3*1663 has 4 divisors: 1, 3, 1663 and 4989. a(5) = 0 as 13^4 = 28561 < 50000 < 59999 < 83521 = 17^4.

%Y Cf. A077515.

%K base,nonn

%O 1,2

%A _Amarnath Murthy_, Nov 08 2002

%E Corrected and extended by _Ray Chandler_, Aug 15 2003

%E a(24) from _Jon E. Schoenfield_, Mar 17 2022

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Last modified May 22 00:02 EDT 2022. Contains 353931 sequences. (Running on oeis4.)