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 Microsoft Excel > Functions > Engineering > DEC2BIN

 

DEC2BIN(number [,places])

 
 Returns the number converted from decimal to binary.

 numberThe decimal integer you want to convert.
 placesThe number of characters to use.

 REMARKS
 
  • This function is only available if you have the Analysis ToolPak add-in installed.
     
  • If any of the arguments are not numeric, then #VALUE! is returned.
     
  • If "number" < -512, then #NUM! is returned.
     
  • If "number" > 511, then #NUM! is returned.
     
  • If "number" < 0, then "places" is ignored and a 10-character (10-bit) binary number in which the most significant bit is the sign bit is returned. The remaining 9 bits are magnitude bits.
     
  • If "number" < 0, then two's-complement notation is used to represent the number.
     
  • If "places" is less than the number of characters needed, then #NUM! is returned.
     
  • If "places" is not an integer, it is truncated.
     
  • If "places" < 0, then #NUM! is returned.
     
  • If "places" is left blank, then the minimum number of characters necessary.
     
  • The "places" is useful for padding the return value with leading 0s (zeros).

     EXAMPLES
     
     A
    1=DEC2BIN(9,4) = 1001
    2=DEC2BIN(-17) = 1111101111
    3=DEC2BIN(-100) = 1110011100
    4=DEC2BIN(9,6) = 001001
    5=DEC2BIN(9,2) = #NUM!
    6=DEC2BIN("some text",8) = #VALUE!
    7=DEC2BIN(9,"some text") = #VALUE!
     

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