260 (number)
260(two hundred [and] sixty) is the natural number following 259 and preceding 261.
In mathematics
[edit]260 is:
- an abundant number[1]
- an Ulam number[2]
- in the Moser-de Bruijn sequence[3]
- the magic constant of the normal magic square of order 8[4]
In other fields
[edit]Pre-Columbian Mesoamericans used 260-day calendars.[5]
References
[edit]- ^ Sloane, N. J. A. (ed.). "Sequence A005101 (Abundant numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- ^ Sloane, N. J. A. (ed.). "Sequence A002858 (Ulam numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- ^ Sloane, N. J. A. (ed.). "Sequence A000695 (Moser-de Bruijn sequence)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- ^ Sloane, N. J. A. (ed.). "Sequence A006003". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- ^ Aldana, Gerardo. "Maya Calendar and Mesoamerican Astronomy". Encyclopedia of the History of Science. Carnegie Mellon University Libraries Publishing Service. Archived from the original on 31 May 2023. Retrieved 3 January 2025.
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