English
Noun
perfect number (plural perfect numbers)
- (number theory) A number that is the sum of all of its divisors except itself.
- The factors of 6 are 1, 2, 3 and 6, and 1 + 2 + 3 = 6, so 6 is a perfect number.
- The factors of 28 are 1, 2, 4, 7, 14 and 28, and 1 + 2 + 4 + 7 + 14 = 28, so 28 is a perfect number.
Translations
a number that is the sum of all of its divisors except itself
- Catalan: nombre perfecte
- Chinese:
- Mandarin: 完全數 (zh), 完全数 (zh) (wánquánshù)
- Dutch: perfect getal
- Finnish: täydellinen luku
- French: nombre parfait (fr) m
- German: vollkommene Zahl f, perfekte Zahl f, ideale Zahl f
- Icelandic: fullkomin tala f
|
|
- Japanese: 完全数 (かんせんすう; kanzen-su)
- Norwegian: perfekt tall
- Portuguese: número perfeito m
- Russian: соверше́нное число́ n (soveršénnoje čisló)
- Slovak: dokonalé číslo n
- Spanish: número perfecto m
- Swedish: perfekt tal (sv) n
- Tagalog: himpit na bilang
- Turkish: mükemmel sayı
|
See also