1227
1,227 km/h is the land speed record, set in 1997.
- Odd
- Composite
Where 1227 fits
Why 1227 is special
The car that set it broke the sound barrier on land, which required a desert surface flat enough over enough distance that only a handful of places on Earth qualify.
Factors & digit properties
- Divisors (4)
- 1, 3, 409, 1227
- Prime factorisation
- 3 × 409
- Digit sum
- 12
- Digital root
- 3
Representations
- Decimal
- 1227
- Binary
- 10011001011
- Octal
- 2313
- Hexadecimal
- 4cb
- Roman numeral
- MCCXXVII
- Scientific notation
- 1.227 × 10^3
Other mathematical patterns
- Deficient number
- Semiprime
Related numbers & connections
The land speed record of 1,227 km/h is below the speed of sound at sea level, about 1,235 km/h, but the record run was supersonic in the colder desert air.
View 1235 →Other connections
- is associated with1235
why?
Strength 0.50, confidence "high".
Technology & computing
The 1997 land speed record of 1,227 km/h was the first supersonic run on land. Suitable venues are limited to a few desert lakebeds with the required length and flatness.
DocumentedTechnology & computingGeography: Black Rock Desert, United StatesPeriod: 1997
Common questions
Is 1227 a prime number?
No, 1227 is not prime.
What are the factors of 1227?
The factors of 1227 are 1, 3, 409, 1227.
What is 1227 in Roman numerals?
1227 in Roman numerals is MCCXXVII.
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