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A096843
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Primes of form repdigit - 1. Primes whose sum of divisors is a decimal repdigit.
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2
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2, 3, 5, 7, 43, 443, 887, 2221, 8887, 444443, 888887, 444444443, 888888887, 444444444443, 888888888887, 222222222222222221, 444444444444444444444444444443, 44444444444444444444444444444443
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OFFSET
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1,1
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COMMENTS
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LINKS
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EXAMPLE
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n=43: sigma(43)=44;
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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