Portuguese edit

Portuguese numbers (edit)
[a], [b] ←  1,000,000,000 (109) [a], [b] ←  1012 1015 1018  → [a], [b] 1021  → [a], [b]
    Cardinal (Brazil): um quatrilhão, um quadrilhão
    Cardinal (everywhere but Brazil): mil biliões
    Ordinal (Brazil): quatrilionésimo, quadrilionésimo
    Ordinal (Portugal): milésimo bilionésimo, milésimo de bilionésimo
    Fractional (Brazil): quatrilionésimo, quadrilionésimo, um quatrilhão avos, um quadrilhão avos
    Fractional (Portugal): milésimo bilionésimo, milésimo de bilionésimo
    Fractional (everywhere but Brazil): mil biliões avos

Alternative forms edit

Etymology edit

Borrowed from French quatrillion.

Pronunciation edit

  • (Brazil) IPA(key): /kwa.tɾiˈʎɐ̃w̃/ [kwa.tɾiˈʎɐ̃ʊ̯̃]

  • Hyphenation: qua‧tri‧lhão

Noun edit

quatrilhão m (plural quatrilhões)

  1. (Brazil, cardinal number) quadrillion (1015)
    Synonym: (Angola, Portugal) mil biliões
  2. (Portugal, informal, cardinal number) Synonym of quatrilião (1018)

Usage notes edit

  • Portuguese-speaking countries follow the traditional long scale, with the exception of Brazil which adopted the short scale used in the UK and US. The number 1015 is expressed as mil biliões in African and European Portuguese, but as um quadrilhão/quatrilhão in Brazilian Portuguese.[1]
  • The Angolan Government proscribes the use of long scale.[2]
  • In Portugal, the alternative um quadrilhão/quatrilhão (one septillion, 1024) is an informal spelling of the preferred and proscribed um quadrilião/quatrilião.[3]

References edit