...     
81,409
 -     
81,410
 -     
81,411
 -     
81,412
 -     
81,413
 -     
81,414
 -     
81,415
 ...     
URI: http://km.aifb.kit.edu/projects/numbers/n81412 
[URI4URI]    Names
    Estonian: 
kaheksakümmend üks tuhat nelisada kaksteist
    Czech: 
osmdesát jedna tisíc ètyøi sta dvanáct
    Portuguese: 
oitenta e um mil quatrocentos e doze
    Lithuanian: 
aðtuoniasdeðimt vienas tûkstantis keturi ðimtai dvylika
    French: 
quatre-vingt-un mille quatre cent douze
    Italian: 
ottant e unmilaquattrocentododici
    Spanish: 
ochenta  y un mil cuatrocientos doce
    German: 
einundachtzigtausendvierhundertzwölf
    English: 
eighty-one thousand four hundred twelve
    Other systems
    Binary: 
10011111000000100
    Octal: 
237004
    Duodecimal: 
3b144
    Hexadecimal: 
13e04
    Hexatridecimal: 
1qtg
    Properties
    Natural logarithm: 
11.307277961273
    Binary logarithm: 
16.312953840681
    Common logarithm: 
4.910688423927
    Prime factors: 
    1
    * 
    2
    * 
    2
    * 
    20,353
    Digit sum: 
    16
    
      Semantic forms
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