1055
NGC 1055 has a visibly warped disc.
- Odd
- Composite
Where 1055 fits
Why 1055 is special
The warp is caused by its neighbour M77, which makes the pair a working example of how galaxies deform each other without colliding.
Same number, different meanings
How 1055 is understood across different contexts — never implying one meaning because of another.
- Mathematics
The warp is caused by its neighbour M77, which makes the pair a working example of how galaxies deform each other without colliding.
- History
In 1055, Seljuk forces under Tughril entered Baghdad, taking effective power from the Abbasid caliphs (Iraq).
- Science
NGC 1055 is an edge-on spiral with a pronounced disc warp and thick dust lane, attributed to gravitational interaction with nearby M77.
1055 is part of
Factors & digit properties
- Divisors (4)
- 1, 5, 211, 1055
- Prime factorisation
- 5 × 211
- Digit sum
- 11
- Digital root
- 2
Representations
- Decimal
- 1055
- Scientific notation
- 1.055 × 10^3
Roman numerals
M L V
Binary
1 0 0 0 0 0 1 1 1 1 1
1 × 1,024 + 0 × 512 + 0 × 256 + 0 × 128 + 0 × 64 + 0 × 32 + 1 × 16 + 1 × 8 + 1 × 4 + 1 × 2 + 1 × 1 = 1,055
Octal
2 0 3 7
2 × 512 + 0 × 64 + 3 × 8 + 7 × 1 = 1,055
Hexadecimal
4 1 f
4 × 256 + 1 × 16 + f × 1 = 1,055
Read as powers of two: 1,024 + 16 + 8 + 4 + 2 + 1 = 1,055.
In historical numeral systems
Egyptian
1 lotus, 5 hobbles, 5 strokes
1 × 1,000 + 5 × 10 + 5 × 1 = 1,055. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
1 corner wedge + 7 vertical wedges (sixties place), 3 corner wedges + 5 vertical wedges (units place)
17 × 60 + 35 = 1055. 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
1055 is a year in the 11th century, in the 1050s.
Both are edge-on spirals with heavy dust lanes; one is visibly warped by a neighbour it has never touched.
View 891 →Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
Other connections
- is associated with891
why?
Strength 0.50, confidence "high".
History
In 1055, Seljuk forces under Tughril entered Baghdad, taking effective power from the Abbasid caliphs (Iraq).
DocumentedHistoryGeography: IraqPeriod: 1055
Science
NGC 1055 is an edge-on spiral with a pronounced disc warp and thick dust lane, attributed to gravitational interaction with nearby M77.
DocumentedSciencePeriod: 1783–
Common questions
Is 1055 a prime number?
No, 1055 is not prime.
What are the factors of 1055?
The factors of 1055 are 1, 5, 211, 1055.
What is 1055 in Roman numerals?
1055 in Roman numerals is MLV.
About this page's data
Mathematical facts:computed directly from the number's value — nothing to source or verify externally.
Contextual records: 2 reviewer-confirmed records, sourced and reviewed before publication.
Last reviewed: 15 July 2026