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Viginti duo
numerus naturalis / From Wikipedia, the free encyclopedia
Viginti duo, seu duo et viginti (numeris Arabicis 22, Romanis XXII, Graecis ΚΒʹ), est numerus naturalis et par inter 21 et 23. Forma binaria est 10110.
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22 in factores primos 2×11 resolvitur. Etiam est summa trium quadratorum, 22 + 32 + 32.