749
The Lockheed Constellation 749 flew the first around-the-world commercial service.
- Odd
- Composite
Where 749 fits
Why 749 is special
Its distinctive triple tail existed for a practical reason: a single fin tall enough would not fit in existing hangars.
Factors & digit properties
- Divisors (4)
- 1, 7, 107, 749
- Prime factorisation
- 7 × 107
- Digit sum
- 20
- Digital root
- 2
Representations
- Decimal
- 749
- Binary
- 1011101101
- Octal
- 1355
- Hexadecimal
- 2ed
- Roman numeral
- DCCXLIX
- Scientific notation
- 7.490 × 10^2
Other mathematical patterns
- Deficient number
- Semiprime
Related numbers & connections
The Constellation took over the ocean routes the flying boats had opened, once runways were long enough.
View 314 →Other connections
- is associated with314
why?
Strength 0.50, confidence "high".
Technology & computing
The Lockheed L-749 Constellation entered service in 1947 with increased range, allowing Pan American to begin round-the-world service. The triple tail kept overall height within existing hangar clearances.
DocumentedTechnology & computingGeography: United StatesPeriod: 1947–
Common questions
Is 749 a prime number?
No, 749 is not prime.
What are the factors of 749?
The factors of 749 are 1, 7, 107, 749.
What is 749 in Roman numerals?
749 in Roman numerals is DCCXLIX.
About this page's data
Mathematical facts:computed directly from the number's value — nothing to source or verify externally.
Contextual records: 1 reviewer-confirmed record, sourced and reviewed before publication.
Last reviewed: 3 August 2026