50,000
50000 Quaoar has a ring outside its Roche limit.
- Even
- Composite
Where 50,000 fits
Why 50,000 is special
Material there should have coalesced into a moon and has not, which is a genuine open problem rather than a curiosity.
Factors & digit properties
- Divisors (30)
- 1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 3125, 5000, 6250, 10000, 12500, 25000, 50000
- Prime factorisation
- 2^4 × 5^5
- Digit sum
- 5
- Digital root
- 5
Representations
- Decimal
- 50000
- Scientific notation
- 5.000 × 10^4
Roman numerals
Roman numerals as modelled here goes up to 3,999.
Binary
1 1 0 0 0 0 1 1 0 1 0 1 0 0 0 0
1 × 32,768 + 1 × 16,384 + 0 × 8,192 + 0 × 4,096 + 0 × 2,048 + 0 × 1,024 + 1 × 512 + 1 × 256 + 0 × 128 + 1 × 64 + 0 × 32 + 1 × 16 + 0 × 8 + 0 × 4 + 0 × 2 + 0 × 1 = 50,000
Octal
1 4 1 5 2 0
1 × 32,768 + 4 × 4,096 + 1 × 512 + 5 × 64 + 2 × 8 + 0 × 1 = 50,000
Hexadecimal
c 3 5 0
c × 4,096 + 3 × 256 + 5 × 16 + 0 × 1 = 50,000
Read as powers of two: 32,768 + 16,384 + 512 + 256 + 64 + 16 = 50,000.
In historical numeral systems
Egyptian
5 fingers
5 × 10,000 = 50,000. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Systems that simply cannot reach this value are left out. Where a script needs a font most readers do not have, the reading is given instead of the glyphs — see number systems for each system in full.
Other mathematical patterns
- Abundant number
- Powerful number
- Harshad (Niven) number
Related numbers & connections
Both are large Kuiper belt objects whose physical properties remain poorly constrained.
View 28978 →Science
50000 Quaoar was found in 2023 to have a ring at a distance where accretion into a satellite would be expected, a configuration not currently explained.
DocumentedSciencePeriod: 2002–
Common questions
Is 50,000 a prime number?
No, 50,000 is not prime.
What are the factors of 50,000?
The factors of 50,000 are 1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 3125, 5000, 6250, 10000, 12500, 25000, 50000.
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: 15 July 2026