A070845 Largest n-digit number with exactly n divisors, or 0 if no such number exists.

1, 97, 961, 9998, 83521, 999981, 4826809, 99999994, 999887641, 9999999824, 25937424601, 999999999981, 3138428376721, 99999999998144, 999997242389289, 9999999999999997, 45949729863572161, 999999999999999252

Offset: 1

Author

Amarnath Murthy, May 12 2002

Keywords

• base
• nonn

Links

• Ray Chandler, Table of n, a(n) for n=1..41

Crossrefs

Cf. A070844.

Formula

If n is a prime >= 29 then a(n) = 0. - Chandler

Extensions

a(6) from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 07 2003

Extended by Ray Chandler, Feb 10 2009