title: 64 Bit Hex conversion to decimal
body: <p>I have a 16 Bit hex value:</p>
  
  <blockquote>
    <p>4164ACFCE33404EA</p>
  </blockquote>
  
  <p>After conversion, the number is:</p>
  
  <blockquote>
    <p>10840039.1001</p>
  </blockquote>
  
  <p>I've tried both IEEE single and double precision 64-bit to decimal and a variety of 16 bit two compliment conversions with no luck. Any Ideas? </p>