1738
The Moon's radius is about 1,738 km.
- Even
- Composite
Where 1738 fits
Why 1738 is special
That is close to a quarter of Earth's, which is unusually large for a moon relative to its planet. The size is why the Moon stabilises Earth's axial tilt, and therefore why the seasons have stayed roughly constant over geological time.
Factors & digit properties
- Divisors (8)
- 1, 2, 11, 22, 79, 158, 869, 1738
- Prime factorisation
- 2 × 11 × 79
- Digit sum
- 19
- Digital root
- 1
Representations
- Decimal
- 1738
- Binary
- 11011001010
- Octal
- 3312
- Hexadecimal
- 6ca
- Roman numeral
- MDCCXXXVIII
- Scientific notation
- 1.738 × 10^3
Other mathematical patterns
- Deficient number
Related numbers & connections
The Moon's radius is roughly a quarter of Earth's. That ratio is what makes the Moon massive enough to stabilise Earth's axial tilt over geological time.
View 6378 →Science
The Moon's radius is roughly a quarter of Earth's, exceptionally large relative to its planet. That mass is what stabilises Earth's axial tilt, and therefore why the seasons have remained roughly constant over geological time rather than wandering.
DocumentedScience
Common questions
Is 1738 a prime number?
No, 1738 is not prime.
What are the factors of 1738?
The factors of 1738 are 1, 2, 11, 22, 79, 158, 869, 1738.
What is 1738 in Roman numerals?
1738 in Roman numerals is MDCCXXXVIII.
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