1387
1387 is a year in the 14th century. Chaucer began the Canterbury Tales, written in English at a time when court literature was French (England).
- Odd
- Composite
Where 1387 fits
Why 1387 is special
1387 has a profile because of what happened in it rather than because of any property of the number: Chaucer began the Canterbury Tales, written in English at a time when court literature was French (England).
1387 is part of
Factors & digit properties
- Divisors (4)
- 1, 19, 73, 1387
- Prime factorisation
- 19 × 73
- Digit sum
- 19
- Digital root
- 1
Representations
- Decimal
- 1387
- Scientific notation
- 1.387 × 10^3
Roman numerals
M C C C L X X X V I I
Binary
1 0 1 0 1 1 0 1 0 1 1
1 × 1,024 + 0 × 512 + 1 × 256 + 0 × 128 + 1 × 64 + 1 × 32 + 0 × 16 + 1 × 8 + 0 × 4 + 1 × 2 + 1 × 1 = 1,387
Octal
2 5 5 3
2 × 512 + 5 × 64 + 5 × 8 + 3 × 1 = 1,387
Hexadecimal
5 6 b
5 × 256 + 6 × 16 + b × 1 = 1,387
Read as powers of two: 1,024 + 256 + 64 + 32 + 8 + 2 + 1 = 1,387.
In historical numeral systems
Egyptian
1 lotus, 3 coils of rope, 8 hobbles, 7 strokes
1 × 1,000 + 3 × 100 + 8 × 10 + 7 × 1 = 1,387. 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), 7 vertical wedges (units place)
23 × 60 + 7 = 1387. 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
- Semiprime
- Harshad (Niven) number
- Lucky number (mathematical sieve)
Related numbers & connections
1387 is a year in the 14th century, in the 1380s.
Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
History
In 1387, Chaucer began the Canterbury Tales, written in English at a time when court literature was French (England).
DocumentedHistoryGeography: EnglandPeriod: 1387
Common questions
Is 1387 a prime number?
No, 1387 is not prime.
What are the factors of 1387?
The factors of 1387 are 1, 19, 73, 1387.
What is 1387 in Roman numerals?
1387 in Roman numerals is MCCCLXXXVII.
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