fdecomite · BY · by
Also known as eighty one, eighty-one
bilangan asli
AI overview
81 is a natural number that comes after 80 and before 82. It is notable because it equals 3 to the fourth power (3⁴) and is also a perfect square (9 × 9).
AI-generated from the Wikipedia summary — may contain errors.
In the Vinony graph
Within Vinony's link graph, 81 is referenced by 435 other articles, and connects out to Japan, Taoism and natural number.
It is catalogued under the topic Integers.
Its subject is documented across 76 Wikipedia language editions.
Wikidata facts
- Instance of
- harshad number
Show 6 more facts
- code
- 10000
- maintained by WikiProject
- WikiProject Mathematics
- Commons category
- 81 (number)
- numeric value
- 81
- prime factor
- 3
- number of decimal digits
- 2
Sources (1)
via Wikidata · CC0
Available in 76 languages
- Español
- Français
- 中文
- 日本語
- Русский
- Português
- Italiano
- العربية
- Abkhazian
- Armenian
- azb
- Azerbaijani
- Bahasa Indonesia
- Basque
- Bulgarian
- Catalan
- cdo
- Central Kurdish
Show 57 more
- Chuvash
- Czech
- Danish
- eml
- Esperanto
- Fijian
- Finnish
- Gan Chinese
- Georgian
- Greek
- Haitian Creole
- Hausa
- Hungarian
- hyw
- Ido
- Interlingua
- Irish
- Kashmiri
- Latvian
- Macedonian
- Maithili
- Malay
- Manipuri
- Marathi
- Mazanderani
- Neapolitan
- Nederlands
- Northern Sotho
- Norwegian
- Norwegian Nynorsk
- Pashto
- Polski
- Romanian
- Serbian
- simple
- Slovenian
- Somali
- Sranan Tongo
- Svenska
- Swahili
- Tatar
- Tibetan
- Tiếng Việt
- Türkçe
- Ukrainian
- Urdu
- Uzbek
- Waray
- Western Panjabi
- Wu Chinese
- Yiddish
- zh_min_nan
- zh_yue
- Zhuang
- فارسی
- ไทย
- 한국어
via Wikidata sitelinks · CC0