432
432 Park Avenue is a residential tower of extreme slenderness.
- Even
- Composite
Where 432 fits
Why 432 is special
Its height-to-width ratio is about fifteen to one, and residents have reported the building's movement in wind as creaking and swaying.
Factors & digit properties
- Divisors (20)
- 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 144, 216, 432
- Prime factorisation
- 2^4 × 3^3
- Digit sum
- 9
- Digital root
- 9
Representations
- Decimal
- 432
- Scientific notation
- 4.320 × 10^2
Roman numerals
C D X X X I I
CDXXXII uses the subtractive pair CD: a hundred before five hundred — five hundred minus a hundred.
Binary
1 1 0 1 1 0 0 0 0
1 × 256 + 1 × 128 + 0 × 64 + 1 × 32 + 1 × 16 + 0 × 8 + 0 × 4 + 0 × 2 + 0 × 1 = 432
Octal
6 6 0
6 × 64 + 6 × 8 + 0 × 1 = 432
Hexadecimal
1 b 0
1 × 256 + b × 16 + 0 × 1 = 432
Read as powers of two: 256 + 128 + 32 + 16 = 432.
In historical numeral systems
Egyptian
4 coils of rope, 3 hobbles, 2 strokes
4 × 100 + 3 × 10 + 2 × 1 = 432. 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), 1 corner wedge + 2 vertical wedges (units place)
7 × 60 + 12 = 432. Places are separated by a space on the tablet, with the higher place written first.
Greek (Ionic)
upsilon, then lambda, then beta, marked as a numeral
upsilon-lambda-beta + keraia
upsilon + lambda + beta 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 lamed, then bet
tav-lamed-bet
tav (400) + lamed (30) + bet (2) = 432, 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
- Abundant number
- Powerful number
- Harshad (Niven) number
Related numbers & connections
432 Hz is promoted in some circles as a superior tuning reference; the claim has no acoustic basis and 440 remains the standard.
View 440 →Technology & computing
432 Park Avenue, completed in 2015 in New York, is among the most slender towers built. Occupants and the developer have been in dispute over reported movement, noise and mechanical faults.
DocumentedTechnology & computingGeography: United StatesPeriod: 2015
Common questions
Is 432 a prime number?
No, 432 is not prime.
What are the factors of 432?
The factors of 432 are 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 144, 216, 432.
What is 432 in Roman numerals?
432 in Roman numerals is CDXXXII. CD is subtractive: a hundred before five hundred — five hundred minus a hundred. Written additively it would be CCCCXXXII, 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