44
44 is the atomic number of ruthenium, sitting between the perfect squares 36 and 49.
- Even
- Composite
Where 44 fits
Why 44 is special
44 (2² × 11) is a quieter number, its clearest mathematical interest being its position squarely between two notable squares.
44 is part of
Factors & digit properties
- Divisors (6)
- 1, 2, 4, 11, 22, 44
- Prime factorisation
- 2^2 × 11
- Digit sum
- 8
- Digital root
- 8
Representations
- Decimal
- 44
- Binary
- 101100
- Octal
- 54
- Hexadecimal
- 2c
- Roman numeral
- XLIV
- Scientific notation
- 4.400 × 10^1
Other mathematical patterns
- Palindromic number
- Deficient number
- Happy number
- Repdigit
Related numbers & connections
Mathematical relationship11 is a factor of 44 (11 × 4 = 44).
44 has factor 1111 is a factor of 44 (11 × 4 = 44).
11 is a factor of 44 (11 × 4 = 44).
View 11 →How is 44 connected to another number? →
Science
44 is the atomic number of ruthenium.
DocumentedScience
Mathematics
44 sits between the perfect squares 36 and 49, and factors as 2² × 11.
DocumentedMathematics
Common questions
Is 44 a prime number?
No, 44 is not prime.
What are the factors of 44?
The factors of 44 are 1, 2, 4, 11, 22, 44.
What is 44 in Roman numerals?
44 in Roman numerals is XLIV.
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