![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/e/e8/Smrekarjev_tarok_-_XVIII.jpg/640px-Smrekarjev_tarok_-_XVIII.jpg&w=640&q=50)
Duodeviginti
numerus naturalis / From Wikipedia, the free encyclopedia
Duodeviginti, rarius octodecim (numeris Arabicis 18, Romanis XVIII, Graecis ΙΗʹ), est numerus naturalis et par inter 17 et 19, qui in factores primos 2 × 32 resolvitur. Forma binaria est 10010.
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/e/e8/Smrekarjev_tarok_-_XVIII.jpg/640px-Smrekarjev_tarok_-_XVIII.jpg)
18 est summa duarum numerorum quadratorum: 32 + 32. Etiam est numerus minimus qui duobus modis summa trium numerorum primorum distinctorum repraesentari potest: 18 = 2 + 3 + 13 = 2 + 5 + 11.
![]() |
Haec stipula ad mathematicam spectat. Amplifica, si potes! |