2160
2160 is the vertical resolution of 4K ultra-high-definition video.
- Even
- Composite
Where 2160 fits
Why 2160 is special
It is exactly twice 1080 in each direction, so a 4K frame holds four 1080p frames. The '4K' name counts horizontal pixels — about 3,840 — while the older names counted vertical lines, which is why the two conventions disagree.
Factors & digit properties
- Divisors (40)
- 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160
- Prime factorisation
- 2^4 × 3^3 × 5
- Digit sum
- 9
- Digital root
- 9
Representations
- Decimal
- 2160
- Scientific notation
- 2.160 × 10^3
Roman numerals
M M C L X
Binary
1 0 0 0 0 1 1 1 0 0 0 0
1 × 2,048 + 0 × 1,024 + 0 × 512 + 0 × 256 + 0 × 128 + 1 × 64 + 1 × 32 + 1 × 16 + 0 × 8 + 0 × 4 + 0 × 2 + 0 × 1 = 2,160
Octal
4 1 6 0
4 × 512 + 1 × 64 + 6 × 8 + 0 × 1 = 2,160
Hexadecimal
8 7 0
8 × 256 + 7 × 16 + 0 × 1 = 2,160
Read as powers of two: 2,048 + 64 + 32 + 16 = 2,160.
In historical numeral systems
Egyptian
2 lotuses, 1 coil of rope, 6 hobbles
2 × 1,000 + 1 × 100 + 6 × 10 = 2,160. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
3 corner wedges + 6 vertical wedges (sixties place), empty units place
36 × 60 + 0 = 2160. Places are separated by a space on the tablet, with the higher place written first. The second place is empty, and this is precisely the case the early system could not write unambiguously — the same wedges alone would also read as 1.
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
- Harshad (Niven) number
Related numbers & connections
4K is exactly twice 1080p in each direction, so one 4K frame contains four 1080p frames. The naming conventions count different axes, which is why the numbers seem inconsistent.
View 1080 →Technology & computing
1080p counts horizontal lines; 4K counts vertical columns, roughly 3,840 of them. The same jump in resolution is therefore described by a smaller number in one convention and a larger one in the other, which is why the names are confusing.
DocumentedTechnology & computing
Common questions
Is 2160 a prime number?
No, 2160 is not prime.
What are the factors of 2160?
The factors of 2160 are 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160.
What is 2160 in Roman numerals?
2160 in Roman numerals is MMCLX.
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