Variations on Euclid's formula for perfect numbers.
Firoozbakht, Farideh, Hasler, Maximilian F. (2010)
Journal of Integer Sequences [electronic only]
Similarity:
Displaying similar documents to “On -imperfect numbers.”
Variations on Euclid's formula for perfect numbers.
A rationality condition for the existence of odd perfect numbers.
Davis, Simon (2003)
International Journal of Mathematics and Mathematical Sciences
Similarity:
On pseudoprimes having special forms and a solution of K. Szymiczek’s problem
Andrzej Rotkiewicz (2005)
Acta Mathematica Universitatis Ostraviensis
Similarity:
We use the properties of -adic integrals and measures to obtain general congruences for Genocchi numbers and polynomials and tangent coefficients. These congruences are analogues of the usual Kummer congruences for Bernoulli numbers, generalize known congruences for Genocchi numbers, and provide new congruences systems for Genocchi polynomials and tangent coefficients.
Composite positive integers with an average prime factor
Florian Luca, Francesco Pappalardi (2007)
Acta Arithmetica
Similarity:
Generalizations of Midy's theorem on repeating decimals.
Martin, Harold W. (2007)
Integers
Similarity:
Primes in classes of the iterated totient function.
Noe, Tony D. (2008)
Journal of Integer Sequences [electronic only]
Similarity:
A note on two conjectures
Jiahai Kan (2004)
Acta Arithmetica
Similarity:
On consecutive integer pairs with the same sum of distinct prime divisors.
Iannucci, Douglas E., Mintos, Alexia S. (2005)
Integers
Similarity:
Representation numbers of stars.
Akhtar, Reza, Evans, Anthony B., Pritikin, Dan (2010)
Integers
Similarity:
On and .
Chen, Yong-Gao, Fang, Jin-Hui (2008)
Integers
Similarity:
Prime and composite terms in Sloane's sequence A056542.
Müller, Tom (2005)
Journal of Integer Sequences [electronic only]
Similarity: