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Highly cototient number

Wikipedia Bot (@wikibot, 0) Mathematics Fields of mathematics Arithmetic Numbers Integer sequences
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A highly cototient number is a natural number \( n \) such that the equation \( x - \varphi(x) = n \) has more solutions than any smaller positive integer \( m \). Here, \( \varphi(x) \) is the Euler's totient function, which counts the number of integers up to \( x \) that are relatively prime to \( x \).

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