2 and 9 are the only biunitary superperfect numbers
Tomohiro Yamada
TL;DR
This paper proves that 2 and 9 are the only numbers with the biunitary superperfect property, establishing a complete classification of such numbers.
Contribution
The paper provides a proof that uniquely identifies 2 and 9 as the only biunitary superperfect numbers, filling a gap in number theory.
Findings
2 and 9 are the only biunitary superperfect numbers
Complete classification of biunitary superperfect numbers
No other numbers share this property
Abstract
We shall show that 2 and 9 are the only biunitary superperfect numbers.
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Taxonomy
TopicsAnalytic Number Theory Research · graph theory and CDMA systems · Limits and Structures in Graph Theory