1006
SN 1006 was the brightest stellar event in recorded history.
- Even
- Composite
Where 1006 fits
Why 1006 is special
Observers in China, Egypt, Iraq, Japan and Europe all recorded it in 1006, and Egyptian accounts describe it as bright enough to read by. The independent records from four civilisations make it one of the best-attested astronomical events of the medieval world.
1006 connects to:
- historical years — appears in
- 1054 — appears alongside
Same number, different meanings
How 1006 is understood across different contexts — never implying one meaning because of another.
- Mathematics
Observers in China, Egypt, Iraq, Japan and Europe all recorded it in 1006, and Egyptian accounts describe it as bright enough to read by. The independent records from four civilisations make it one of the best-attested astronomical events of the medieval world.
- Science
In 1006, the brightest supernova in recorded history appeared, described by observers in China, Egypt, Iraq, Japan and Europe.
- Media & popular culture
BWV 1006 is the third partita for solo violin. Bach later arranged its Prelude for organ and orchestra in two separate cantatas.
1006 is part of
Factors & digit properties
- Divisors (4)
- 1, 2, 503, 1006
- Prime factorisation
- 2 × 503
- Digit sum
- 7
- Digital root
- 7
Representations
- Decimal
- 1006
- Scientific notation
- 1.006 × 10^3
Roman numerals
M V I
Binary
1 1 1 1 1 0 1 1 1 0
1 × 512 + 1 × 256 + 1 × 128 + 1 × 64 + 1 × 32 + 0 × 16 + 1 × 8 + 1 × 4 + 1 × 2 + 0 × 1 = 1,006
Octal
1 7 5 6
1 × 512 + 7 × 64 + 5 × 8 + 6 × 1 = 1,006
Hexadecimal
3 e e
3 × 256 + e × 16 + e × 1 = 1,006
Read as powers of two: 512 + 256 + 128 + 64 + 32 + 8 + 4 + 2 = 1,006.
In historical numeral systems
Egyptian
1 lotus, 6 strokes
1 × 1,000 + 6 × 1 = 1,006. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
1 corner wedge + 6 vertical wedges (sixties place), 4 corner wedges + 6 vertical wedges (units place)
16 × 60 + 46 = 1006. Places are separated by a space on the tablet, with the higher place written first.
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
- Deficient number
- Semiprime
Related numbers & connections
1006 is a year in the 11th century, in the 1000s.
Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
- appears alongside1054
why?
Strength 0.50, confidence "high".
Science
In 1006, the brightest supernova in recorded history appeared, described by observers in China, Egypt, Iraq, Japan and Europe.
DocumentedScienceGeography: globalPeriod: 1006A supernova in 1006 was described independently by Chinese, Arabic, Japanese and European observers, several noting it was bright enough to read by at night. The convergence of unconnected records is what makes the event so firmly dated.
DocumentedSciencePeriod: 1006
Media & popular culture
BWV 1006 is the third partita for solo violin. Bach later arranged its Prelude for organ and orchestra in two separate cantatas.
DocumentedMedia & popular cultureGeography: GermanyPeriod: 1720
Common questions
Is 1006 a prime number?
No, 1006 is not prime.
What are the factors of 1006?
The factors of 1006 are 1, 2, 503, 1006.
What is 1006 in Roman numerals?
1006 in Roman numerals is MVI.
About this page's data
Mathematical facts:computed directly from the number's value — nothing to source or verify externally.
Contextual records: 3 reviewer-confirmed records, sourced and reviewed before publication.
Last reviewed: 15 July 2026