886
+886 is the international calling code for Taiwan.
- Even
- Composite
Where 886 fits
Why 886 is special
The code sits in the 8x East Asian block. Its administrative listing at the ITU has been a point of diplomatic contention, which is unusual for a technical registry and reflects the wider dispute over Taiwan's status.
Factors & digit properties
- Divisors (4)
- 1, 2, 443, 886
- Prime factorisation
- 2 × 443
- Digit sum
- 22
- Digital root
- 4
Representations
- Decimal
- 886
- Scientific notation
- 8.860 × 10^2
Roman numerals
D C C C L X X X V I
Binary
1 1 0 1 1 1 0 1 1 0
1 × 512 + 1 × 256 + 0 × 128 + 1 × 64 + 1 × 32 + 1 × 16 + 0 × 8 + 1 × 4 + 1 × 2 + 0 × 1 = 886
Octal
1 5 6 6
1 × 512 + 5 × 64 + 6 × 8 + 6 × 1 = 886
Hexadecimal
3 7 6
3 × 256 + 7 × 16 + 6 × 1 = 886
Read as powers of two: 512 + 256 + 64 + 32 + 16 + 4 + 2 = 886.
In historical numeral systems
Egyptian
8 coils of rope, 8 hobbles, 6 strokes
8 × 100 + 8 × 10 + 6 × 1 = 886. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
1 corner wedge + 4 vertical wedges (sixties place), 4 corner wedges + 6 vertical wedges (units place)
14 × 60 + 46 = 886. Places are separated by a space on the tablet, with the higher place written first.
Greek (Ionic)
omega, then pi, then stigma, marked as a numeral
omega-pi-stigma + keraia
omega + pi + stigma 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 pe, then vav
tav-tav-pe-vav
tav (400) + tav (400) + pe (80) + vav (6) = 886, 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
- Semiprime
Geography
+886 reaches Taiwan, in the 8x East Asian block. How the assignment is designated in ITU listings has been a point of diplomatic contention — unusual for a technical registry, and a direct reflection of the wider dispute over status.
DocumentedGeographyGeography: Taiwan
Common questions
Is 886 a prime number?
No, 886 is not prime.
What are the factors of 886?
The factors of 886 are 1, 2, 443, 886.
What is 886 in Roman numerals?
886 in Roman numerals is DCCCLXXXVI.
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