Hexadecimal equivalent of the decimal number 10101 is

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URSC ISRO Technical Assistant Electronics 20 August 2017 Official Paper
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  1. 15
  2. 23565
  3. 1010
  4. 2775

Answer (Detailed Solution Below)

Option 4 : 2775
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Detailed Solution

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  • To convert a decimal number system to hexadecimal, we follow the successive division approach i.e. we divide the decimal number by 16 and note down the remainder.
  • Each remainder is then expressed in hexadecimal.
  •  

             

    So, (10101)10 = (2775)16

    Alternate Method:

    The conversion from decimal to hexadecimal can also take place by first converting the decimal to binary, i.e.

    Taking a pair of 4 and converting it into its hexadecimal equivalent, we get:

    0010 0111 0111 0101 = (2775)16

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