Eighty-three

• Hexadecimal: 53
• Binary: 01010011
• Factors: 1, 83
• the 23rd prime number, following seventy-nine and preceeding eighty-nine. Also a Sophie Germain prime
• Ordinal number: eighty-third

• the atomic number of bismuth (Bi)
• the hours in 83 Hours 'Til Dawn
• the model number of Bell XP-83
• the Messier number of M83, the Southern Pinwheel Galaxy
• the number of the French department Var
• the designation of Interstate 83, a freeway that runs from Maryland to Pennsylvania; European route E83 from Bjala to Sofia
• the year AD 83 or AD 1983.

Referenced By