804
804 is the ISO 3166-1 numeric country code for Ukraine.
- Even
- Composite
Where 804 fits
Why 804 is special
Ukraine was assigned its own code on independence in 1991, distinct from the retired Soviet code.
Factors & digit properties
- Divisors (12)
- 1, 2, 3, 4, 6, 12, 67, 134, 201, 268, 402, 804
- Prime factorisation
- 2^2 × 3 × 67
- Digit sum
- 12
- Digital root
- 3
Representations
- Decimal
- 804
- Scientific notation
- 8.040 × 10^2
Roman numerals
D C C C I V
DCCCIV uses the subtractive pair IV: one before five — five minus one.
Binary
1 1 0 0 1 0 0 1 0 0
1 × 512 + 1 × 256 + 0 × 128 + 0 × 64 + 1 × 32 + 0 × 16 + 0 × 8 + 1 × 4 + 0 × 2 + 0 × 1 = 804
Octal
1 4 4 4
1 × 512 + 4 × 64 + 4 × 8 + 4 × 1 = 804
Hexadecimal
3 2 4
3 × 256 + 2 × 16 + 4 × 1 = 804
Read as powers of two: 512 + 256 + 32 + 4 = 804.
In historical numeral systems
Egyptian
8 coils of rope, 4 strokes
8 × 100 + 4 × 1 = 804. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
1 corner wedge + 3 vertical wedges (sixties place), 2 corner wedges + 4 vertical wedges (units place)
13 × 60 + 24 = 804. Places are separated by a space on the tablet, with the higher place written first.
Greek (Ionic)
omega, then delta, marked as a numeral
omega-delta + keraia
omega + 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 tav, then dalet
tav-tav-dalet
tav (400) + tav (400) + dalet (4) = 804, 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
Ukraine's ISO numeric code and calling code, both assigned on independence in 1991 rather than inherited from the Soviet Union.
View 380 →Other connections
- is associated with380
why?
Strength 0.50, confidence "high".
Geography
804 is Ukraine's ISO numeric code, assigned on independence in 1991 rather than inherited from the Soviet Union.
DocumentedGeographyGeography: Ukraine
Common questions
Is 804 a prime number?
No, 804 is not prime.
What are the factors of 804?
The factors of 804 are 1, 2, 3, 4, 6, 12, 67, 134, 201, 268, 402, 804.
What is 804 in Roman numerals?
804 in Roman numerals is DCCCIV. IV is subtractive: one before five — five minus one. Written additively it would be DCCCIIII, 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