80

... 77 - 78 - 79 - 80 - 81 - 82 - 83 ...

URI: http://km.aifb.kit.edu/projects/numbers/n80 [URI4URI]

External links

Wikipedia: 80_(number)
Wikidata: Q712467

Names

Estonian: kaheksakümmend
Czech: osmdesát
Portuguese: oitenta
Lithuanian: aðtuoniasdeðimt
French: quatre-vingts
Italian: ottanta
Spanish: ochenta
German: achtzig
English: eighty

Other systems

Roman: LXXX
Binary: 1010000
Octal: 120
Duodecimal: 68
Hexadecimal: 50
Hexatridecimal: 28

Properties

Natural logarithm: 4.3820266346739
Binary logarithm: 6.3219280948874
Common logarithm: 1.9030899869919
Prime factors: 1 * 2 * 2 * 2 * 2 * 5
Digit sum: 8

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