Number reference
24 explained.
24: twenty-four, composite, factorial; factors, prime factorization, roots, binary, hexadecimal, and digit properties.
Identity and representations
- Written form
- twenty-four
- Classification
- composite
- Factors
- 1, 2, 3, 4, 6, 8, 12, 24
- Prime factorization
- 2 × 2 × 2 × 3
- Square root
- 4.898979
- Cube root
- 2.884499
- Binary
- 11000
- Octal
- 30
- Hexadecimal
- 18
- Roman numeral
- XXIV
- Digit sum
- 6
- Digital root
- 6
What makes 24 notable
- Factorial. 24 = 4! — the product of every whole number from 1 to 4. It counts the ways 4 distinct items can be put in order.
- Highly composite. 24 has 8 divisors — more than any smaller positive number. That is why numbers like this get chosen for units of time, angle, and packaging.
24 in everyday use
Twenty-four is the number of hours in a day, splitting the day into two twelve-hour halves.
Nearby numbers
How to read this page
The factor list shows every way 24 splits into equal whole-number groups — 8 divisors in total. The prime factorisation is the compact form of that same information, and the base conversions restate 24 for contexts that do not use decimal.
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