34
34 is the 9th Fibonacci number, and the atomic number of selenium.
Where 34 fits
Why 34 is special
34's clean membership in the Fibonacci sequence (1, 1, 2, 3, 5, 8, 13, 21, 34) is its most notable mathematical property.
34 connects to:
- 68 — is a factor of
- fibonacci sequence — belongs to
34 is part of
Factors & digit properties
- Divisors (4)
- 1, 2, 17, 34
- Prime factorisation
- 2 × 17
- Digit sum
- 7
- Digital root
- 7
Representations
- Decimal
- 34
- Binary
- 100010
- Octal
- 42
- Hexadecimal
- 22
- Roman numeral
- XXXIV
- Scientific notation
- 3.400 × 10^1
Other mathematical patterns
- Deficient number
- Semiprime
Related numbers & connections
34 is a factor of 68 (34 × 2 = 68).
View 68 →34 is the 9th number in the Fibonacci sequence.
Mathematically related
- is a factor of68
why?
Strength 0.50, confidence "high".
Shares a distinctive class
- belongs toFibonacci sequence
why?
Strength 0.50, confidence "high".
Science
34 is the atomic number of selenium, an essential trace mineral.
DocumentedScience
Mathematics
34 is the 9th Fibonacci number (1, 1, 2, 3, 5, 8, 13, 21, 34), each term the sum of the two preceding it.
DocumentedMathematics
Common questions
Is 34 a prime number?
No, 34 is not prime.
What are the factors of 34?
The factors of 34 are 1, 2, 17, 34.
What is 34 in Roman numerals?
34 in Roman numerals is XXXIV.
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