1188
1188 is a year in the 12th century. The Saladin tithe was levied to fund the Third Crusade, an early general tax on income and movables (England and France).
- Even
- Composite
Where 1188 fits
Why 1188 is special
1188 has a profile because of what happened in it rather than because of any property of the number: the Saladin tithe was levied to fund the Third Crusade, an early general tax on income and movables (England and France).
1188 is part of
Factors & digit properties
- Divisors (24)
- 1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 27, 33, 36, 44, 54, 66, 99, 108, 132, 198, 297, 396, 594, 1188
- Prime factorisation
- 2^2 × 3^3 × 11
- Digit sum
- 18
- Digital root
- 9
Representations
- Decimal
- 1188
- Scientific notation
- 1.188 × 10^3
Roman numerals
M C L X X X V I I I
Binary
1 0 0 1 0 1 0 0 1 0 0
1 × 1,024 + 0 × 512 + 0 × 256 + 1 × 128 + 0 × 64 + 1 × 32 + 0 × 16 + 0 × 8 + 1 × 4 + 0 × 2 + 0 × 1 = 1,188
Octal
2 2 4 4
2 × 512 + 2 × 64 + 4 × 8 + 4 × 1 = 1,188
Hexadecimal
4 a 4
4 × 256 + a × 16 + 4 × 1 = 1,188
Read as powers of two: 1,024 + 128 + 32 + 4 = 1,188.
In historical numeral systems
Egyptian
1 lotus, 1 coil of rope, 8 hobbles, 8 strokes
1 × 1,000 + 1 × 100 + 8 × 10 + 8 × 1 = 1,188. 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), 4 corner wedges + 8 vertical wedges (units place)
19 × 60 + 48 = 1188. 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
- Abundant number
- Happy number
- Harshad (Niven) number
Related numbers & connections
1188 is a year in the 12th century, in the 1180s.
Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
History
In 1188, the Saladin tithe was levied to fund the Third Crusade, an early general tax on income and movables (England and France).
DocumentedHistoryGeography: England and FrancePeriod: 1188
Common questions
Is 1188 a prime number?
No, 1188 is not prime.
What are the factors of 1188?
The factors of 1188 are 1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 27, 33, 36, 44, 54, 66, 99, 108, 132, 198, 297, 396, 594, 1188.
What is 1188 in Roman numerals?
1188 in Roman numerals is MCLXXXVIII.
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