56
56 is the atomic number of barium, sitting between the highly composite numbers 48 and 60.
- Even
- Composite
Where 56 fits
Why 56 is special
56 (2³ × 7) is a quieter number, most notable for the good company it keeps between two highly divisible neighbours.
Factors & digit properties
- Divisors (8)
- 1, 2, 4, 7, 8, 14, 28, 56
- Prime factorisation
- 2^3 × 7
- Digit sum
- 11
- Digital root
- 2
Representations
- Decimal
- 56
- Binary
- 111000
- Octal
- 70
- Hexadecimal
- 38
- Roman numeral
- LVI
- Scientific notation
- 5.600 × 10^1
Other mathematical patterns
- Abundant number
Related numbers & connections
Mathematical relationship28 is a factor of 56 (28 × 2 = 56).
56 has factor 2828 is a factor of 56 (28 × 2 = 56).
28 is a factor of 56 (28 × 2 = 56).
View 28 →Mathematically related
- has factor28
why?
Strength 0.50, confidence "high".
Science
56 is the atomic number of barium.
DocumentedScience
Mathematics
56 factors as 2³ × 7, sitting between the highly composite numbers 48 and 60.
DocumentedMathematics
Common questions
Is 56 a prime number?
No, 56 is not prime.
What are the factors of 56?
The factors of 56 are 1, 2, 4, 7, 8, 14, 28, 56.
What is 56 in Roman numerals?
56 in Roman numerals is LVI.
About this page's data
Mathematical facts:computed directly from the number's value — nothing to source or verify externally.
Contextual records: 2 reviewer-confirmed records, sourced and reviewed before publication.
Last reviewed: 15 July 2026