263
+263 is the international calling code for Zimbabwe.
- Odd
- Prime
Where 263 fits
Why 263 is special
Zimbabwe abandoned its own currency in 2009 after hyperinflation, using US dollars and other currencies for a decade. Notes from that period, including a hundred-trillion-dollar bill, are now sold as souvenirs.
263 is part of
Factors & digit properties
- Divisors (2)
- 1, 263
- Prime factorisation
- 263
- Digit sum
- 11
- Digital root
- 2
Representations
- Decimal
- 263
- Scientific notation
- 2.630 × 10^2
Roman numerals
C C L X I I I
Binary
1 0 0 0 0 0 1 1 1
1 × 256 + 0 × 128 + 0 × 64 + 0 × 32 + 0 × 16 + 0 × 8 + 1 × 4 + 1 × 2 + 1 × 1 = 263
Octal
4 0 7
4 × 64 + 0 × 8 + 7 × 1 = 263
Hexadecimal
1 0 7
1 × 256 + 0 × 16 + 7 × 1 = 263
Read as powers of two: 256 + 4 + 2 + 1 = 263.
In historical numeral systems
Egyptian
2 coils of rope, 6 hobbles, 3 strokes
2 × 100 + 6 × 10 + 3 × 1 = 263. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
4 vertical wedges (sixties place), 2 corner wedges + 3 vertical wedges (units place)
4 × 60 + 23 = 263. Places are separated by a space on the tablet, with the higher place written first.
Greek (Ionic)
sigma, then xi, then gamma, marked as a numeral
sigma-xi-gamma + keraia
sigma + xi + gamma written in descending order and added — the letters carry their values wherever they stand, so this is addition, not place value.
Hebrew numerals
resh, then samekh, then gimel
resh-samekh-gimel
resh (200) + samekh (60) + gimel (3) = 263, written in descending order.
Maya
2 bars + 3 dots (upper, twenties place) over 3 dots (lower, units place)
13 × 20 + 3 = 263. Places stack vertically with the smallest at the bottom, so the upper group is worth twenty times the lower.
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
- Happy number
- Safe prime
Related numbers & connections
Mozambique and Zimbabwe share a border, and Zimbabwe's landlocked economy has depended on Mozambican ports.
View 258 →Nearby in a sequence
- is adjacent to258
why?
Strength 0.50, confidence "high".
Geography
+263 reaches Zimbabwe. The country abandoned its own currency in 2009 following hyperinflation that produced a hundred-trillion-dollar banknote, now worth more as a collectible than it ever was as money.
DocumentedGeographyGeography: Zimbabwe
Common questions
Is 263 a prime number?
Yes, 263 is prime — it has exactly two positive divisors: 1 and itself.
What are the factors of 263?
The factors of 263 are 1, 263.
What is 263 in Roman numerals?
263 in Roman numerals is CCLXIII.
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