1115
1115 is a year in the 12th century. The Jurchen proclaimed the Jin dynasty in the north (China).
- Odd
- Composite
Where 1115 fits
Why 1115 is special
1115 has a profile because of what happened in it rather than because of any property of the number: the Jurchen proclaimed the Jin dynasty in the north (China).
1115 is part of
Factors & digit properties
- Divisors (4)
- 1, 5, 223, 1115
- Prime factorisation
- 5 × 223
- Digit sum
- 8
- Digital root
- 8
Representations
- Decimal
- 1115
- Scientific notation
- 1.115 × 10^3
Roman numerals
M C X V
Binary
1 0 0 0 1 0 1 1 0 1 1
1 × 1,024 + 0 × 512 + 0 × 256 + 0 × 128 + 1 × 64 + 0 × 32 + 1 × 16 + 1 × 8 + 0 × 4 + 1 × 2 + 1 × 1 = 1,115
Octal
2 1 3 3
2 × 512 + 1 × 64 + 3 × 8 + 3 × 1 = 1,115
Hexadecimal
4 5 b
4 × 256 + 5 × 16 + b × 1 = 1,115
Read as powers of two: 1,024 + 64 + 16 + 8 + 2 + 1 = 1,115.
In historical numeral systems
Egyptian
1 lotus, 1 coil of rope, 1 hobble, 5 strokes
1 × 1,000 + 1 × 100 + 1 × 10 + 5 × 1 = 1,115. 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), 3 corner wedges + 5 vertical wedges (units place)
18 × 60 + 35 = 1115. 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
- Happy number
- Semiprime
Related numbers & connections
1115 is a year in the 12th century, in the 1110s.
Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
History
In 1115, the Jurchen proclaimed the Jin dynasty in the north (China).
DocumentedHistoryGeography: ChinaPeriod: 1115
Common questions
Is 1115 a prime number?
No, 1115 is not prime.
What are the factors of 1115?
The factors of 1115 are 1, 5, 223, 1115.
What is 1115 in Roman numerals?
1115 in Roman numerals is MCXV.
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