594
A2 paper is 420 by 594 mm.
- Even
- Composite
Where 594 fits
Why 594 is special
Each step up the A series doubles the area of the last. A2 is four A4 sheets, and the proportions are identical at every size, which is what lets the same document scale between them without redesign.
Factors & digit properties
- Divisors (16)
- 1, 2, 3, 6, 9, 11, 18, 22, 27, 33, 54, 66, 99, 198, 297, 594
- Prime factorisation
- 2 × 3^3 × 11
- Digit sum
- 18
- Digital root
- 9
Representations
- Decimal
- 594
- Scientific notation
- 5.940 × 10^2
Roman numerals
D X C I V
DXCIV uses the subtractive pair IV: one before five — five minus one.
Binary
1 0 0 1 0 1 0 0 1 0
1 × 512 + 0 × 256 + 0 × 128 + 1 × 64 + 0 × 32 + 1 × 16 + 0 × 8 + 0 × 4 + 1 × 2 + 0 × 1 = 594
Octal
1 1 2 2
1 × 512 + 1 × 64 + 2 × 8 + 2 × 1 = 594
Hexadecimal
2 5 2
2 × 256 + 5 × 16 + 2 × 1 = 594
Read as powers of two: 512 + 64 + 16 + 2 = 594.
In historical numeral systems
Egyptian
5 coils of rope, 9 hobbles, 4 strokes
5 × 100 + 9 × 10 + 4 × 1 = 594. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
9 vertical wedges (sixties place), 5 corner wedges + 4 vertical wedges (units place)
9 × 60 + 54 = 594. Places are separated by a space on the tablet, with the higher place written first.
Greek (Ionic)
phi, then koppa, then delta, marked as a numeral
phi-koppa-delta + keraia
phi + koppa + delta 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 qof, then tsadi, then dalet
tav-qof-tsadi-dalet
tav (400) + qof (100) + tsadi (90) + dalet (4) = 594, 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
- Harshad (Niven) number
Related numbers & connections
A1 is 594 by 841 mm and A0 is 841 by 1,189. The chain from A0 down to A5 is five halvings of a single square metre.
View 841 →Draco's code of 621 BC prescribed death for most offences; Solon repealed nearly all of it within thirty years, keeping only the homicide law.
View 621 →Everyday life
A2 measures 420 by 594 mm, four times the area of A4 and the same shape. The doubling continues to A0 at one square metre, which is the definition the whole series is derived from.
DocumentedEveryday lifeGeography: International outside North America
Common questions
Is 594 a prime number?
No, 594 is not prime.
What are the factors of 594?
The factors of 594 are 1, 2, 3, 6, 9, 11, 18, 22, 27, 33, 54, 66, 99, 198, 297, 594.
What is 594 in Roman numerals?
594 in Roman numerals is DXCIV. IV is subtractive: one before five — five minus one. Written additively it would be DLXXXXIIII, 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