1487
1487 is the year the Malleus Maleficarum was printed.
- Odd
- Prime
Where 1487 fits
Why 1487 is special
A witch-hunting manual, it was condemned by the Inquisition itself as unsound and became a bestseller anyway. Printing spread it faster than any authority could restrain it.
1487 is part of
Factors & digit properties
- Divisors (2)
- 1, 1487
- Prime factorisation
- 1487
- Digit sum
- 20
- Digital root
- 2
Representations
- Decimal
- 1487
- Scientific notation
- 1.487 × 10^3
Roman numerals
M C D L X X X V I I
MCDLXXXVII uses the subtractive pair CD: a hundred before five hundred — five hundred minus a hundred.
Binary
1 0 1 1 1 0 0 1 1 1 1
1 × 1,024 + 0 × 512 + 1 × 256 + 1 × 128 + 1 × 64 + 0 × 32 + 0 × 16 + 1 × 8 + 1 × 4 + 1 × 2 + 1 × 1 = 1,487
Octal
2 7 1 7
2 × 512 + 7 × 64 + 1 × 8 + 7 × 1 = 1,487
Hexadecimal
5 c f
5 × 256 + c × 16 + f × 1 = 1,487
Read as powers of two: 1,024 + 256 + 128 + 64 + 8 + 4 + 2 + 1 = 1,487.
In historical numeral systems
Egyptian
1 lotus, 4 coils of rope, 8 hobbles, 7 strokes
1 × 1,000 + 4 × 100 + 8 × 10 + 7 × 1 = 1,487. 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), 4 corner wedges + 7 vertical wedges (units place)
24 × 60 + 47 = 1487. 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
- Happy number
- Safe prime
- Twin prime
Related numbers & connections
1487 is a year in the 15th century, in the 1480s.
The Malleus Maleficarum was printed in 1487 and condemned as unsound by the Inquisition it invoked; the Salem trials of 1692 ended when spectral evidence was excluded. Both are about what counts as proof.
View 1692 →Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
Other connections
- is associated with1692
why?
Strength 0.50, confidence "high".
History
In 1487, Bartolomeu Dias sailed south to find the end of Africa (Portugal and Africa).
DocumentedHistoryGeography: Portugal and AfricaPeriod: 1487The Malleus Maleficarum was rejected as theologically unsound by the very body it invoked and ran through dozens of editions regardless. It is an early demonstration that print outruns endorsement.
DocumentedHistoryGeography: Holy Roman EmpirePeriod: 1487
Common questions
Is 1487 a prime number?
Yes, 1487 is prime — it has exactly two positive divisors: 1 and itself.
What are the factors of 1487?
The factors of 1487 are 1, 1487.
What is 1487 in Roman numerals?
1487 in Roman numerals is MCDLXXXVII. CD is subtractive: a hundred before five hundred — five hundred minus a hundred. Written additively it would be MCCCCLXXXVII, 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