A077515 Smallest n-digit number beginning with n and having n divisors, or 0 if no such number exists.

1, 23, 361, 4006, 0, 600004, 0, 80000001, 900060001, 1000000016, 0, 120000000020, 0, 14000000002112, 150000300946521, 1600000000000005, 0, 180000000000000639, 0, 20000000000000000048, 210000002255164326976, 2200000000000000037888, 0, 240000000000000000000004

Offset: 1

Author

Amarnath Murthy, Nov 08 2002

Keywords

• base
• nonn

Examples

			a(5) = 0 as 13^4 = 28561 < 50000 < 59999 < 83521 = 17^4.
		

Crossrefs

Cf. A077516.

Extensions

More terms from Ray Chandler, Aug 14 2003

a(24) from Jon E. Schoenfield, Mar 17 2022