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Dear, Unlucky Numbers Regulations Committee. Is 13 unlucky in base ten only, or are 1101 and D and other bases also unlucky?
Best regards, Your friend,

MetaNumbers  
Properties of the #number 13: - Odd - Prime - Prime factorization = 13 - 1 prime factor - 2 divisors - φ(n) = 12 - Binary: 1101 - Hex: d More inf...
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