1047
BWV 1047 is the second Brandenburg Concerto.
- Odd
- Composite
Where 1047 fits
Why 1047 is special
Its trumpet part is written so high that it was effectively unplayable for two centuries, until instrument makers reconstructed the piccolo trumpet.
Same number, different meanings
How 1047 is understood across different contexts — never implying one meaning because of another.
- Mathematics
Its trumpet part is written so high that it was effectively unplayable for two centuries, until instrument makers reconstructed the piccolo trumpet.
- History
In 1047, William of Normandy secured his duchy at Val-es-Dunes at about nineteen (Normandy).
- Media & popular culture
BWV 1047 requires a trumpet in F playing in an extreme register. Modern performance depends on the piccolo trumpet, developed in the late nineteenth century.
1047 is part of
Factors & digit properties
- Divisors (4)
- 1, 3, 349, 1047
- Prime factorisation
- 3 × 349
- Digit sum
- 12
- Digital root
- 3
Representations
- Decimal
- 1047
- Scientific notation
- 1.047 × 10^3
Roman numerals
M X L V I I
MXLVII uses the subtractive pair XL: ten before fifty — fifty minus ten.
Binary
1 0 0 0 0 0 1 0 1 1 1
1 × 1,024 + 0 × 512 + 0 × 256 + 0 × 128 + 0 × 64 + 0 × 32 + 1 × 16 + 0 × 8 + 1 × 4 + 1 × 2 + 1 × 1 = 1,047
Octal
2 0 2 7
2 × 512 + 0 × 64 + 2 × 8 + 7 × 1 = 1,047
Hexadecimal
4 1 7
4 × 256 + 1 × 16 + 7 × 1 = 1,047
Read as powers of two: 1,024 + 16 + 4 + 2 + 1 = 1,047.
In historical numeral systems
Egyptian
1 lotus, 4 hobbles, 7 strokes
1 × 1,000 + 4 × 10 + 7 × 1 = 1,047. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
1 corner wedge + 7 vertical wedges (sixties place), 2 corner wedges + 7 vertical wedges (units place)
17 × 60 + 27 = 1047. 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
Related numbers & connections
Two of the six Brandenburg Concertos, one with an almost unplayable trumpet part.
View 1049 →One concerto has no violins and another an extreme trumpet part, in the same set of six.
View 1051 →History
In 1047, William of Normandy secured his duchy at Val-es-Dunes at about nineteen (Normandy).
DocumentedHistoryGeography: NormandyPeriod: 1047
Media & popular culture
BWV 1047 requires a trumpet in F playing in an extreme register. Modern performance depends on the piccolo trumpet, developed in the late nineteenth century.
DocumentedMedia & popular cultureGeography: GermanyPeriod: 1721
Common questions
Is 1047 a prime number?
No, 1047 is not prime.
What are the factors of 1047?
The factors of 1047 are 1, 3, 349, 1047.
What is 1047 in Roman numerals?
1047 in Roman numerals is MXLVII. XL is subtractive: ten before fifty — fifty minus ten. Written additively it would be MXXXXVII, 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