441
The Sennheiser MD 441 is a supercardioid dynamic microphone.
Where 441 fits
Why 441 is special
It is often described as the dynamic microphone that behaves like a condenser, which is why it survives in studios that own both.
441 is part of
Factors & digit properties
- Divisors (9)
- 1, 3, 7, 9, 21, 49, 63, 147, 441
- Prime factorisation
- 3^2 × 7^2
- Digit sum
- 9
- Digital root
- 9
Representations
- Decimal
- 441
- Scientific notation
- 4.410 × 10^2
Roman numerals
C D X L I
CDXLI uses the subtractive pair XL: ten before fifty — fifty minus ten.
Binary
1 1 0 1 1 1 0 0 1
1 × 256 + 1 × 128 + 0 × 64 + 1 × 32 + 1 × 16 + 1 × 8 + 0 × 4 + 0 × 2 + 1 × 1 = 441
Octal
6 7 1
6 × 64 + 7 × 8 + 1 × 1 = 441
Hexadecimal
1 b 9
1 × 256 + b × 16 + 9 × 1 = 441
Read as powers of two: 256 + 128 + 32 + 16 + 8 + 1 = 441.
In historical numeral systems
Egyptian
4 coils of rope, 4 hobbles, 1 stroke
4 × 100 + 4 × 10 + 1 × 1 = 441. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
7 vertical wedges (sixties place), 2 corner wedges + 1 vertical wedge (units place)
7 × 60 + 21 = 441. Places are separated by a space on the tablet, with the higher place written first.
Greek (Ionic)
upsilon, then mu, then alpha, marked as a numeral
upsilon-mu-alpha + keraia
upsilon + mu + alpha written in descending order and added — the letters carry their values wherever they stand, so this is addition, not place value.
Hebrew numerals
tav, then mem, then alef
tav-mem-alef
tav (400) + mem (40) + alef (1) = 441, written in descending order.
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
- Powerful number
- Harshad (Niven) number
Related numbers & connections
Both are Sennheiser dynamic microphones with switchable bass roll-off, one supercardioid and one cardioid.
View 421 →Numbers Around Us
- appears alongside421
why?
Strength 0.50, confidence "high".
Media & popular culture
The Sennheiser MD 441 is a supercardioid dynamic microphone with a five-position bass roll-off and a brilliance switch, noted for extended high-frequency response uncommon in dynamic designs.
DocumentedMedia & popular cultureGeography: GermanyPeriod: 1971–
Common questions
Is 441 a prime number?
No, 441 is not prime.
What are the factors of 441?
The factors of 441 are 1, 3, 7, 9, 21, 49, 63, 147, 441.
What is 441 in Roman numerals?
441 in Roman numerals is CDXLI. XL is subtractive: ten before fifty — fifty minus ten. Written additively it would be CCCCXXXXI, 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