12

Ordinal Number: Twelfth

Roman Numeral: XII

Properties:

• Even number
• Composite number
• Highly composite number (highest value number with 6 divisors)

Mathematical Relationships:

• Square root of 144
• Product of 3 and 4
• Sum of 5 and 7
• Difference between 13 and 1

Cultural and Historical Significance:

• Number of apostles in Christianity
• Number of months in a year
• Number of hours on a standard clock
• Number of notes in the chromatic scale
• Number of zodiac signs

Other Facts:

• Atomic number of magnesium
• Number of presidents on the dime
• Number of stars on the European Union flag
• Number of gates in a football field
• Number of labors of Hercules