Duodetriginta Nexus externi | Tabula navigationisAmplificaDe numero 28

Numeri triangulares


numerus naturalisparnumerus triangularisfactoresprimosbinaria




Haec pagina est de numero.

Ut de anno legas, vide 28.



Duodetriginta homines Slovenici anno 1949


Duodetriginta, rarius viginti octo sive octo et viginti (numeris Arabicis 28, Romanis XXVIII, Graecis ΚΗʹ), est numerus naturalis, par, ac numerus triangularis inter 27 et 29, qui in factores primos 22 × 7 resolvitur. Forma binaria est 11100.


28 est numerus minimus qui tribus modis summa quattuor quadratorum distinctorum repraesentari potest:


28 = 12 + 12 + 12 + 52 = 12 + 32 + 32 + 32 = 22 + 22 + 22 + 42

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mathematica

Haec stipula ad mathematicam spectat. Amplifica, si potes!


Nexus externi |



  • De numero 28 apud Wolfram Alpha

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