On perfect totient numbers.
Iannucci, Douglas E., Deng, Moujie, Cohen, Graeme L. (2003)
Journal of Integer Sequences [electronic only]
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Displaying similar documents to “Characterizing the sum of two cubes.”
On perfect totient numbers.
On powerful numbers.
Mollin, R.A., Walsh, P.G. (1986)
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On the diophantine equation
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Extensions of the Gauss-Wilson theorem.
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Some arithmetic properties of overpartition -tuples.
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Divisibility by 2 and 3 of certain Stirling numbers.
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Iterated exponents in number theory.
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Kaprekar triples.
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The Diophantine equation . II.
Cohn, J.H.E. (1999)
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Applications of Jacobi's symbol to Lehmer's numbers
A. Rotkiewicz (1983)
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New theorems concerning the diophantine equation
W. Ljunggren (1972)
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The cube of the Fermat quotient.
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