Oito

8
Nomes dos numerais
Cardinal oito
Ordinal oitavo
Coletivo octeto
Multiplicativo óctuplo
Fracionário oitavo
Notações nos principais sistemas
Numeração indo-arábica 8
Numeração romana VIII
Numeração egípcia
Z1 Z1 Z1
Z1 Z1 Z1
Z1 Z1
Numeração grega ΠIII
Numeração jónica η'
Numeração chinesa
Numeração hebraica
Numeração arménia Ը
Numeração Āryabhaṭa
Numeração maia
Sistema binário 10002
Sistema octal 108
Sistema duodecimal 8
Sistema hexadecimal 8
Propriedades matemáticas
Fatorização 23
φ(8) = 4 τ(8) = 4 σ(8) = 15
π(8) = 4 μ(8) = 0 M(8) = -2
Lista de números inteiros
0 1 2 3 4 5 6 7 8 9

0 10 20 30 40 50 60 70 80 90

O oito (8) é o número natural (VIII na numeração romana) que segue o sete e precede o nove.

  • O oitavo dia do mês era consagrado, em Atenas, a Posidão, porque 8 é o primeiro cubo de um número par e o dobro do primeiro quadrado, representando, assim, a natureza firme e constante deste deus.[1]

O símbolo do infinito ∞, descrito como "oito de lado" não tem relação com o glifo 8; foi usado pela primeira vez (com o significado matemático de "infinito") no século XVII, e pode ter se derivado do antigo numeral romano para "mil" CIƆ, ou alternativamente da letra grega ω.

Referências

  1. a b Plutarco, Vidas Paralelas, Vida de Teseu, 36.4
Ícone de esboço Este artigo sobre matemática é um esboço. Você pode ajudar a Wikipédia expandindo-o.
Wikilivros
Wikilivros
O Wikilivros tem um livro chamado Pequenos números
Wikcionário
Wikcionário
O Wikcionário tem o verbete oito.
O Commons possui uma categoria com imagens e outros ficheiros sobre Oito

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