duodecimal
Counting by twelves
Duodecimal refers to a base-twelve numeral system, counting by twelves rather than tens.
Where decimal uses digits 0-9, duodecimal requires two additional symbols for ten and eleven.
Advocates note that twelve divides evenly by 2, 3, 4, and 6, making fractions cleaner: In duodecimal, a third is simply 0.4.
Total before subtractions
- twelveOne more than eleven
- twelfthsDivisions by dozen
- divisibilityAbility to divide evenly
- radixNumerical system's base
positional · notation · numerals · digits · place value · counting · multiplication tables · fractions
Small length units
- feetLower limbs' ends
- troy weightPrecious metal measurement system
- ouncesUnits of weight
- imperial unitsBritish-origin measurement system
shillings · pence · avoirdupois · apothecary
Sixty-minute spans
- monthsYear's twelve parts
- clock faceNumbered timepiece display
- midnightTwelve o'clock at night
- noonDay's exact middle
zodiac signs · annual cycle · lunar months · calendar · horology · chronometry · dial
Ability to divide evenly
- factorsContributors to a result
- prime factorizationUnique prime product representation
- number theoryPure math studying integers
- place valueDigit worth by position
Consisting of two parts
- octalRadix-eight numeral system
- hexadecimalSixteen-digit numeral system
- decimalTenths-based notation
- ternaryConsisting of three parts
Ancient Mesopotamian civilization
- SumeriansAncient southern Mesopotamian people
- MesopotamiaTigris-Euphrates river region
- cuneiformStylus-impressed ancient script
- clay tabletsInscribed earthen slabs
gross
Total before subtractions
- twelveOne more than eleven
- twelfthsDivisions by dozen
- divisibilityAbility to divide evenly
radix · positional · notation · numerals · digits · place value · counting · multiplication tables · fractions · thirds
inches
Small length units
- feetLower limbs' ends
- troy weightPrecious metal measurement system
- ouncesUnits of weight
imperial units · shillings · pence · avoirdupois · apothecary
hours
Sixty-minute spans
- monthsYear's twelve parts
- clock faceNumbered timepiece display
- midnightTwelve o'clock at night
noon · zodiac signs · annual cycle · lunar months · calendar · horology · chronometry · dial
divisibility
Ability to divide evenly
- factorsContributors to a result
- prime factorizationUnique prime product representation
- number theoryPure math studying integers
educational reform
Improving learning institutions systematically
binary
Consisting of two parts
- octalRadix-eight numeral system
- hexadecimalSixteen-digit numeral system
- decimalTenths-based notation
Babylonians
Ancient Mesopotamian civilization
- SumeriansAncient southern Mesopotamian people
- MesopotamiaTigris-Euphrates river region
- cuneiformStylus-impressed ancient script
- Dozenstwelfth, twelfths, twelvefold, gross, apostles
- number basesbinary, decimal, hexadecimal, octal, radix
duodecimaldecimal
Tenths-based notation
binary · hexadecimal · octal · ternary · quaternary
duodecimalqualitative
Relating to characteristics, not quantities