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Search: id:A137492
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| A137492 |
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Numbers with 29 divisors. |
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+0
6
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| 268435456, 22876792454961, 37252902984619140625, 459986536544739960976801, 144209936106499234037676064081, 15502932802662396215269535105521, 28351092476867700887730107366063041
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Maple implementation: see A030513.
28th powers of primes. The n-th number with p divisors is equal to the n-th prime raised to power p-1, where p is prime. - Omar E. Pol (info(AT)polprimos.com), May 06 2008
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FORMULA
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A000005(a(n))=29.
a(n)=A000040(n)^(29-1)=A000040(n)^(28). - Omar E. Pol (info(AT)polprimos.com), May 06 2008
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CROSSREFS
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Cf. A030513-A030516, A030626, A030627, A030634-A030638, A005179, A003680, A096932, A061286, A061283.
Cf. A000040.
Sequence in context: A125576 A011578 A122969 this_sequence A105014 A018881 A016930
Adjacent sequences: A137489 A137490 A137491 this_sequence A137493 A137494 A137495
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KEYWORD
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nonn
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AUTHOR
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R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Apr 22 2008
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