Definition:Triperfect Number/Sequence
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Sequence of Triperfect Numbers
The sequence of triperfect numbers begins:
- $120, \quad 672, \quad 523 \, 776, \quad 459 \, 818 \, 240, \quad 1 \, 476 \, 304 \, 896, \quad 51 \, 001 \, 180 \, 160$
These are all the triperfect numbers that are currently known.
This sequence is A005820 in the On-Line Encyclopedia of Integer Sequences (N. J. A. Sloane (Ed.), 2008).
Sources
- 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $120$
- 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $120$
- Weisstein, Eric W. "Multiperfect Number." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/MultiperfectNumber.html