1443
1443 is a year in the 15th century. Sejong's scholars completed the hangul alphabet, promulgated three years later (Korea).
- Odd
- Composite
Where 1443 fits
Why 1443 is special
1443 has a profile because of what happened in it rather than because of any property of the number: Sejong's scholars completed the hangul alphabet, promulgated three years later (Korea).
1443 is part of
Factors & digit properties
- Divisors (8)
- 1, 3, 13, 37, 39, 111, 481, 1443
- Prime factorisation
- 3 × 13 × 37
- Digit sum
- 12
- Digital root
- 3
Representations
- Decimal
- 1443
- Scientific notation
- 1.443 × 10^3
Roman numerals
M C D X L I I I
MCDXLIII uses the subtractive pair XL: ten before fifty — fifty minus ten.
Binary
1 0 1 1 0 1 0 0 0 1 1
1 × 1,024 + 0 × 512 + 1 × 256 + 1 × 128 + 0 × 64 + 1 × 32 + 0 × 16 + 0 × 8 + 0 × 4 + 1 × 2 + 1 × 1 = 1,443
Octal
2 6 4 3
2 × 512 + 6 × 64 + 4 × 8 + 3 × 1 = 1,443
Hexadecimal
5 a 3
5 × 256 + a × 16 + 3 × 1 = 1,443
Read as powers of two: 1,024 + 256 + 128 + 32 + 2 + 1 = 1,443.
In historical numeral systems
Egyptian
1 lotus, 4 coils of rope, 4 hobbles, 3 strokes
1 × 1,000 + 4 × 100 + 4 × 10 + 3 × 1 = 1,443. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
2 corner wedges + 4 vertical wedges (sixties place), 3 vertical wedges (units place)
24 × 60 + 3 = 1443. 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
1443 is a year in the 15th century, in the 1440s.
Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
History
In 1443, Sejong's scholars completed the hangul alphabet, promulgated three years later (Korea).
DocumentedHistoryGeography: KoreaPeriod: 1443
Common questions
Is 1443 a prime number?
No, 1443 is not prime.
What are the factors of 1443?
The factors of 1443 are 1, 3, 13, 37, 39, 111, 481, 1443.
What is 1443 in Roman numerals?
1443 in Roman numerals is MCDXLIII. XL is subtractive: ten before fifty — fifty minus ten. Written additively it would be MCCCCXXXXIII, 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