id:A077515 - OEIS Search Results

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

+0
5

1, 23, 361, 4006, 0, 600004, 0, 80000001, 900060001, 1000000016, 0, 120000000020, 0, 14000000002112, 150000300946521, 1600000000000005, 0, 180000000000000639, 0, 20000000000000000048, 210000002255164326976, 2200000000000000037888, 0 (list; graph; listen)

	OFFSET	`1,2`
	EXAMPLE	`a(5) = 0 as 13^4 =28561 < 50000 < 59999 < 83521 = 17^4.`
	CROSSREFS	`Cf. A077516.` `Sequence in context: A020346 A025964 A021684 this_sequence A025942 A020000 A021664` `Adjacent sequences: A077512 A077513 A077514 this_sequence A077516 A077517 A077518`
	KEYWORD	`base,nonn`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Nov 08 2002`
	EXTENSIONS	`More terms from Ray Chandler (rayjchandler(AT)sbcglobal.net), Aug 14 2003`

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Last modified November 27 14:34 EST 2009. Contains 167570 sequences.

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