1430
1,430 is a Catalan number.
- Even
- Composite
Where 1430 fits
Why 1430 is special
Catalan numbers count things that nest: ways to triangulate a polygon, valid arrangements of brackets, binary tree shapes. The same sequence answers dozens of apparently unrelated counting problems.
1430 is part of
Factors & digit properties
- Divisors (16)
- 1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430
- Prime factorisation
- 2 × 5 × 11 × 13
- Digit sum
- 8
- Digital root
- 8
Representations
- Decimal
- 1430
- Scientific notation
- 1.430 × 10^3
Roman numerals
M C D X X X
MCDXXX uses the subtractive pair CD: a hundred before five hundred — five hundred minus a hundred.
Binary
1 0 1 1 0 0 1 0 1 1 0
1 × 1,024 + 0 × 512 + 1 × 256 + 1 × 128 + 0 × 64 + 0 × 32 + 1 × 16 + 0 × 8 + 1 × 4 + 1 × 2 + 0 × 1 = 1,430
Octal
2 6 2 6
2 × 512 + 6 × 64 + 2 × 8 + 6 × 1 = 1,430
Hexadecimal
5 9 6
5 × 256 + 9 × 16 + 6 × 1 = 1,430
Read as powers of two: 1,024 + 256 + 128 + 16 + 4 + 2 = 1,430.
In historical numeral systems
Egyptian
1 lotus, 4 coils of rope, 3 hobbles
1 × 1,000 + 4 × 100 + 3 × 10 = 1,430. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
2 corner wedges + 3 vertical wedges (sixties place), 5 corner wedges (units place)
23 × 60 + 50 = 1430. 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
Related numbers & connections
1430 is a year in the 15th century, in the 1430s.
Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
History
In 1430, Joan of Arc was captured at Compiegne and sold to the English (France).
DocumentedHistoryGeography: FrancePeriod: 1430
Mathematics
Catalan numbers count balanced bracket arrangements, polygon triangulations, binary tree shapes and mountain ranges drawn with equal up and down strokes. That such different questions share an answer is the interesting part.
DocumentedMathematics
Common questions
Is 1430 a prime number?
No, 1430 is not prime.
What are the factors of 1430?
The factors of 1430 are 1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430.
What is 1430 in Roman numerals?
1430 in Roman numerals is MCDXXX. CD is subtractive: a hundred before five hundred — five hundred minus a hundred. Written additively it would be MCCCCXXX, 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: 2 reviewer-confirmed records, sourced and reviewed before publication.
Last reviewed: 15 July 2026