6826
NGC 6826 is the Blinking Planetary.
- Even
- Composite
Where 6826 fits
Why 6826 is special
Looking directly at it makes it seem to vanish and looking slightly aside brings it back, because the eye's periphery is more sensitive to faint light.
Factors & digit properties
- Divisors (4)
- 1, 2, 3413, 6826
- Prime factorisation
- 2 × 3413
- Digit sum
- 22
- Digital root
- 4
Representations
- Decimal
- 6826
- Binary
- 1101010101010
- Octal
- 15252
- Hexadecimal
- 1aaa
- Scientific notation
- 6.826 × 10^3
Other mathematical patterns
- Deficient number
- Semiprime
Related numbers & connections
The Blinking Planetary and the Ghost of Jupiter are both named from visual impressions at the eyepiece.
View 3242 →Other connections
- is associated with3242
why?
Strength 0.50, confidence "high".
Science
NGC 6826 has a bright central star and a fainter shell. Direct vision favours the star and averted vision the nebula, producing the apparent blinking.
DocumentedSciencePeriod: 1793–
Common questions
Is 6826 a prime number?
No, 6826 is not prime.
What are the factors of 6826?
The factors of 6826 are 1, 2, 3413, 6826.
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