1141
1141 is a year in the 12th century. Stephen was captured at Lincoln and Matilda briefly held London (England).
- Odd
- Composite
Where 1141 fits
Why 1141 is special
1141 has a profile because of what happened in it rather than because of any property of the number: Stephen was captured at Lincoln and Matilda briefly held London (England).
1141 is part of
Factors & digit properties
- Divisors (4)
- 1, 7, 163, 1141
- Prime factorisation
- 7 × 163
- Digit sum
- 7
- Digital root
- 7
Representations
- Decimal
- 1141
- Scientific notation
- 1.141 × 10^3
Roman numerals
M C X L I
MCXLI uses the subtractive pair XL: ten before fifty — fifty minus ten.
Binary
1 0 0 0 1 1 1 0 1 0 1
1 × 1,024 + 0 × 512 + 0 × 256 + 0 × 128 + 1 × 64 + 1 × 32 + 1 × 16 + 0 × 8 + 1 × 4 + 0 × 2 + 1 × 1 = 1,141
Octal
2 1 6 5
2 × 512 + 1 × 64 + 6 × 8 + 5 × 1 = 1,141
Hexadecimal
4 7 5
4 × 256 + 7 × 16 + 5 × 1 = 1,141
Read as powers of two: 1,024 + 64 + 32 + 16 + 4 + 1 = 1,141.
In historical numeral systems
Egyptian
1 lotus, 1 coil of rope, 4 hobbles, 1 stroke
1 × 1,000 + 1 × 100 + 4 × 10 + 1 × 1 = 1,141. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
1 corner wedge + 9 vertical wedges (sixties place), 1 vertical wedge (units place)
19 × 60 + 1 = 1141. 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
- Harshad (Niven) number
Related numbers & connections
1141 is a year in the 12th century, in the 1140s.
Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
History
In 1141, Stephen was captured at Lincoln and Matilda briefly held London (England).
DocumentedHistoryGeography: EnglandPeriod: 1141
Common questions
Is 1141 a prime number?
No, 1141 is not prime.
What are the factors of 1141?
The factors of 1141 are 1, 7, 163, 1141.
What is 1141 in Roman numerals?
1141 in Roman numerals is MCXLI. XL is subtractive: ten before fifty — fifty minus ten. Written additively it would be MCXXXXI, which Roman inscriptions used freely — the strict subtractive form is a later convention.
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