https://decimal-to-binary.com/decimal-to-binary-converter-online.html?id=61066
# Transfer 811 from 9 - rich in decimal number system

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if(ss==16) $('#rightdr').fadeIn(300); else $('#rightdr').fadeOut(300);
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function printleftssDOP()
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}
function printleftssTip(tip)
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switch(ss)
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case '1':maxlenght = 8*tip; break;
case '2':maxlenght = 8*tip; break;
case '3':maxlenght = 3*tip; break;
case '4':maxlenght = 0; break;
case '5':maxlenght = 2*tip; break;
case '6':maxlenght = 8*tip; break;
case '7':maxlenght = 0*tip; break;
}
if(maxlenght!=0)
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var ch = $('#chislo').val();
var chlenght = ch.length;
if(chlenght>maxlenght)
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ch = ch.substr(-maxlenght);
$('#chislo').val(ch);
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function printRigtssTipSign(tip)
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function printlrihtssDOP()
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var text;
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if (ss==3) {strFilter =/^[0-7,.]*$/; text=" an Octal number can only contain digits 0-7, as well as a dot for fractional numbers"; }
if (ss==4) {strFilter =/^[0-9,.-]*$/; text=" a Decimal number can only contain digits 0-9, as well as a dot for fractional numbers"; }
if (ss==5) {strFilter =/^[0-9a-fA-F,.x]*$/; text=" a Hexadecimal number can only contain digits 0-9, letters A, B,C,D, E,F, and a dot for fractional numbers";}
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}
else if($('#chislo').val().length>=30)
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$('#chislo').val('');
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$('#href_calc').fadeOut(1);
$('#calc_wait').fadeIn(1);
$('#ads_calc').fadeIn(1);
// отправляем форму
$.ajax({
type:"POST",
data: {
chislo: $('#chislo').val(),
ss: $('input[name=ss]:checked').val(),
ssTo: $('input[name=ssTo]:checked').val(),
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ssTosign: $('input[name=ssTosign]:checked').val(),
ssTotip: $('input[name=ssTotip]:checked').val(),
ssTotipsign: $('input[name=ssTotipsign]:checked').val(),
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url: "https://decimal-to-binary.com/calc/calcyadro.php?calculator=2&calcid=1",
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Ternary

Octal

Decimal

Hexadecimal

Binary-decimal

Other

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Triple

Octal

Decimal

Hexadecimal

Binary-decimal

Other

Additional

$( function() {
window.print();
});

Enter a number:

His number system:

Binary Ternary

Octal

Decimal

Hexadecimal

Binary-decimal

Other

What? (number)

Additional Translate to :

let\'s translate to decimal like this:

8∙9^{2}+1∙9^{1}+1∙9^{0} = 8∙81+1∙9+1∙1 = 648+9+1 = 658_{10}

got It: 811_{9} =658_{10}