6823
NGC 6823 is the cluster inside NGC 6820.
- Odd
- Prime
Where 6823 fits
Why 6823 is special
The cluster and its nebula have adjacent catalogue numbers, which is unusual and reflects that they were recognised as a pair.
6823 is part of
Factors & digit properties
- Divisors (2)
- 1, 6823
- Prime factorisation
- 6823
- Digit sum
- 19
- Digital root
- 1
Representations
- Decimal
- 6823
- Binary
- 1101010100111
- Octal
- 15247
- Hexadecimal
- 1aa7
- Scientific notation
- 6.823 × 10^3
Other mathematical patterns
- Deficient number
Related numbers & connections
A nebula and the cluster ionising it, carrying consecutive catalogue numbers.
View 6820 →The cluster's massive stars are what light and erode the surrounding gas.
View 6820 →Science
NGC 6823 is a young open cluster whose massive stars ionise the surrounding nebula NGC 6820, the two objects carrying consecutive catalogue designations.
DocumentedSciencePeriod: 1785–
Common questions
Is 6823 a prime number?
Yes, 6823 is prime — it has exactly two positive divisors: 1 and itself.
What are the factors of 6823?
The factors of 6823 are 1, 6823.
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