Transfer 1257 from octal in binary number system

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This transfer is possible in two ways: direct transfer and using the decimal system.

first, let\'s make a direct transfer.

let\'s do a direct translation from octal to binary like this:

12578 = 1 2 5 7 = 1(=001) 2(=010) 5(=101) 7(=111) = 0010101011112

the Final answer: 12578 = 10101011112

now let\'s make the transfer using the decimal system.

let\'s translate to decimal like this:

1∙83+2∙82+5∙81+7∙80 = 1∙512+2∙64+5∙8+7∙1 = 512+128+40+7 = 68710

got It: 12578 =68710

Translate the number 68710 в binary like this:

the Integer part of the number is divided by the base of the new number system:

6872
-6863432
1-3421712
1-170852
1-84422
1-42212
0-20102
1-1052
0-422
1-21
0
Перевод чисел из одной системы счисления в другую

the result of the conversion was:

68710 = 10101011112
the Final answer: 12578 = 10101011112
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