1406
1406 is a year in the 15th century. Florence conquered Pisa and gained a seaport (Italy).
- Even
- Composite
Where 1406 fits
Why 1406 is special
1406 has a profile because of what happened in it rather than because of any property of the number: Florence conquered Pisa and gained a seaport (Italy).
1406 is part of
Factors & digit properties
- Divisors (8)
- 1, 2, 19, 37, 38, 74, 703, 1406
- Prime factorisation
- 2 × 19 × 37
- Digit sum
- 11
- Digital root
- 2
Representations
- Decimal
- 1406
- Scientific notation
- 1.406 × 10^3
Roman numerals
M C D V I
MCDVI uses the subtractive pair CD: a hundred before five hundred — five hundred minus a hundred.
Binary
1 0 1 0 1 1 1 1 1 1 0
1 × 1,024 + 0 × 512 + 1 × 256 + 0 × 128 + 1 × 64 + 1 × 32 + 1 × 16 + 1 × 8 + 1 × 4 + 1 × 2 + 0 × 1 = 1,406
Octal
2 5 7 6
2 × 512 + 5 × 64 + 7 × 8 + 6 × 1 = 1,406
Hexadecimal
5 7 e
5 × 256 + 7 × 16 + e × 1 = 1,406
Read as powers of two: 1,024 + 256 + 64 + 32 + 16 + 8 + 4 + 2 = 1,406.
In historical numeral systems
Egyptian
1 lotus, 4 coils of rope, 6 strokes
1 × 1,000 + 4 × 100 + 6 × 1 = 1,406. 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), 2 corner wedges + 6 vertical wedges (units place)
23 × 60 + 26 = 1406. 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
1406 is a year in the 15th century, in the 1400s.
Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
History
In 1406, Florence conquered Pisa and gained a seaport (Italy).
DocumentedHistoryGeography: ItalyPeriod: 1406
Common questions
Is 1406 a prime number?
No, 1406 is not prime.
What are the factors of 1406?
The factors of 1406 are 1, 2, 19, 37, 38, 74, 703, 1406.
What is 1406 in Roman numerals?
1406 in Roman numerals is MCDVI. CD is subtractive: a hundred before five hundred — five hundred minus a hundred. Written additively it would be MCCCCVI, 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