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A106429
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Smallest number beginning with 9 and having exactly n prime divisors counted with multiplicity.
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28
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97, 9, 92, 90, 918, 96, 972, 960, 9072, 9600, 90624, 9216, 93312, 90112, 903168, 98304, 995328, 917504, 9043968, 9175040, 90243072, 9437184, 95551488, 92274688, 924844032, 922746880, 9042919424, 905969664, 9172942848, 9059696640
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OFFSET
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1,1
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LINKS
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EXAMPLE
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a(2) = 9 = 3^2.
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PROG
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(PARI) a(n) = {i = 2^n; while ((digits(i)[1] != 9) || (bigomega(i)!=n), i++); i; } \\ Michel Marcus, Sep 14 2013
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CROSSREFS
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KEYWORD
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base,nonn
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AUTHOR
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STATUS
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approved
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