330
The Airbus A330 is the widebody that outlasted its own replacement plan.
- Even
- Composite
Where 330 fits
Why 330 is special
Designed alongside the four-engined A340, it succeeded precisely because two engines became sufficient for transoceanic flight while four became uneconomic. The A340 ended production in 2011; the A330 continued.
Same number, different meanings
How 330 is understood across different contexts — never implying one meaning because of another.
- Mathematics
Designed alongside the four-engined A340, it succeeded precisely because two engines became sufficient for transoceanic flight while four became uneconomic. The A340 ended production in 2011; the A330 continued.
- Everyday life
Industrial citric acid is produced by fermenting sugar with Aspergillus niger. The name and the E-number suggest citrus and the manufacturing route has nothing to do with it.
- Technology & computing
The A330 and A340 were developed together as twin and quad variants. Improving engine reliability made twins legal over oceans and fuel cost made quads uneconomic, so one sibling outlived the other by well over a decade.
- Geography
Constantinople was founded in 330 at the junction of Europe and Asia and of the Black Sea and Mediterranean. That position sustained it as a capital for over eleven centuries.
Factors & digit properties
- Divisors (16)
- 1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 330
- Prime factorisation
- 2 × 3 × 5 × 11
- Digit sum
- 6
- Digital root
- 6
Representations
- Decimal
- 330
- Binary
- 101001010
- Octal
- 512
- Hexadecimal
- 14a
- Roman numeral
- CCCXXX
- Scientific notation
- 3.300 × 10^2
Other mathematical patterns
- Abundant number
- Pentagonal number
- Harshad (Niven) number
Related numbers & connections
Hagia Sophia was completed in 537 in the city founded as a capital in 330, and its dome was the largest in the world for nearly a millennium.
View 537 →Everyday life
Industrial citric acid is produced by fermenting sugar with Aspergillus niger. The name and the E-number suggest citrus and the manufacturing route has nothing to do with it.
DocumentedEveryday lifeGeography: European Union and United Kingdom
Technology & computing
The A330 and A340 were developed together as twin and quad variants. Improving engine reliability made twins legal over oceans and fuel cost made quads uneconomic, so one sibling outlived the other by well over a decade.
DocumentedTechnology & computing
Geography
Constantinople was founded in 330 at the junction of Europe and Asia and of the Black Sea and Mediterranean. That position sustained it as a capital for over eleven centuries.
DocumentedGeographyGeography: ConstantinoplePeriod: 330
Common questions
Is 330 a prime number?
No, 330 is not prime.
What are the factors of 330?
The factors of 330 are 1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 330.
What is 330 in Roman numerals?
330 in Roman numerals is CCCXXX.
About this page's data
Mathematical facts:computed directly from the number's value — nothing to source or verify externally.
Contextual records: 3 reviewer-confirmed records, sourced and reviewed before publication.
Last reviewed: 3 August 2026