A base-60, or sexagesimal, number system, used by the ancient Babylonians.
Babylonian Numerals
See also
Numeral, SexagesimalExplore with Wolfram|Alpha
References
O'Connor, J. J. and Robertson, E. F. "Babylonian numerals." http://www-groups.dcs.st-and.ac.uk/~history/HistTopics/Babylonian_numerals.html.Referenced on Wolfram|Alpha
Babylonian NumeralsCite this as:
Weisstein, Eric W. "Babylonian Numerals." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/BabylonianNumerals.html