1127
1127 is a year in the 12th century. Jin forces captured Kaifeng and the Northern Song dynasty fell, driving the court south (China).
- Odd
- Composite
Where 1127 fits
Why 1127 is special
1127 has a profile because of what happened in it rather than because of any property of the number: Jin forces captured Kaifeng and the Northern Song dynasty fell, driving the court south (China).
1127 is part of
Factors & digit properties
- Divisors (6)
- 1, 7, 23, 49, 161, 1127
- Prime factorisation
- 7^2 × 23
- Digit sum
- 11
- Digital root
- 2
Representations
- Decimal
- 1127
- Scientific notation
- 1.127 × 10^3
Roman numerals
M C X X V I I
Binary
1 0 0 0 1 1 0 0 1 1 1
1 × 1,024 + 0 × 512 + 0 × 256 + 0 × 128 + 1 × 64 + 1 × 32 + 0 × 16 + 0 × 8 + 1 × 4 + 1 × 2 + 1 × 1 = 1,127
Octal
2 1 4 7
2 × 512 + 1 × 64 + 4 × 8 + 7 × 1 = 1,127
Hexadecimal
4 6 7
4 × 256 + 6 × 16 + 7 × 1 = 1,127
Read as powers of two: 1,024 + 64 + 32 + 4 + 2 + 1 = 1,127.
In historical numeral systems
Egyptian
1 lotus, 1 coil of rope, 2 hobbles, 7 strokes
1 × 1,000 + 1 × 100 + 2 × 10 + 7 × 1 = 1,127. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
1 corner wedge + 8 vertical wedges (sixties place), 4 corner wedges + 7 vertical wedges (units place)
18 × 60 + 47 = 1127. 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
Related numbers & connections
1127 is a year in the 12th century, in the 1120s.
Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
History
In 1127, Jin forces captured Kaifeng and the Northern Song dynasty fell, driving the court south (China).
DocumentedHistoryGeography: ChinaPeriod: 1127
Common questions
Is 1127 a prime number?
No, 1127 is not prime.
What are the factors of 1127?
The factors of 1127 are 1, 7, 23, 49, 161, 1127.
What is 1127 in Roman numerals?
1127 in Roman numerals is MCXXVII.
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