3390
Mars's radius is about 3,390 km.
- Even
- Composite
Where 3390 fits
Why 3390 is special
Roughly half Earth's radius gives Mars about a tenth of its mass and a quarter of its surface area — close to the land area of Earth, since Earth's surface is mostly ocean. Its low gravity is why it could not retain a thick atmosphere.
Factors & digit properties
- Divisors (16)
- 1, 2, 3, 5, 6, 10, 15, 30, 113, 226, 339, 565, 678, 1130, 1695, 3390
- Prime factorisation
- 2 × 3 × 5 × 113
- Digit sum
- 15
- Digital root
- 6
Representations
- Decimal
- 3390
- Binary
- 110100111110
- Octal
- 6476
- Hexadecimal
- d3e
- Roman numeral
- MMMCCCXC
- Scientific notation
- 3.390 × 10^3
Other mathematical patterns
- Abundant number
- Harshad (Niven) number
Related numbers & connections
Mars is about half Earth's radius, giving a tenth the mass and roughly the surface area of Earth's land — since Earth is mostly ocean.
View 6378 →Other connections
- contrasts with6378
why?
Strength 0.50, confidence "high".
Science
Mars is about half Earth's radius, giving roughly a tenth the mass and a quarter the surface area — comparable to Earth's land area, since Earth is mostly ocean. The low gravity is the reason it could not hold onto a thick atmosphere.
DocumentedScience
Common questions
Is 3390 a prime number?
No, 3390 is not prime.
What are the factors of 3390?
The factors of 3390 are 1, 2, 3, 5, 6, 10, 15, 30, 113, 226, 339, 565, 678, 1130, 1695, 3390.
What is 3390 in Roman numerals?
3390 in Roman numerals is MMMCCCXC.
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