591
+591 is the international calling code for Bolivia.
- Odd
- Composite
Where 591 fits
Why 591 is special
Bolivia has two capitals — Sucre constitutionally and La Paz in practice — and La Paz is the highest seat of government in the world at around 3,600 m.
Factors & digit properties
- Divisors (4)
- 1, 3, 197, 591
- Prime factorisation
- 3 × 197
- Digit sum
- 15
- Digital root
- 6
Representations
- Decimal
- 591
- Scientific notation
- 5.910 × 10^2
Roman numerals
D X C I
DXCI uses the subtractive pair XC: ten before a hundred — a hundred minus ten.
Binary
1 0 0 1 0 0 1 1 1 1
1 × 512 + 0 × 256 + 0 × 128 + 1 × 64 + 0 × 32 + 0 × 16 + 1 × 8 + 1 × 4 + 1 × 2 + 1 × 1 = 591
Octal
1 1 1 7
1 × 512 + 1 × 64 + 1 × 8 + 7 × 1 = 591
Hexadecimal
2 4 f
2 × 256 + 4 × 16 + f × 1 = 591
Read as powers of two: 512 + 64 + 8 + 4 + 2 + 1 = 591.
In historical numeral systems
Egyptian
5 coils of rope, 9 hobbles, 1 stroke
5 × 100 + 9 × 10 + 1 × 1 = 591. 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 + 1 vertical wedge (units place)
9 × 60 + 51 = 591. Places are separated by a space on the tablet, with the higher place written first.
Greek (Ionic)
phi, then koppa, then alpha, marked as a numeral
phi-koppa-alpha + keraia
phi + koppa + alpha 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 alef
tav-qof-tsadi-alef
tav (400) + qof (100) + tsadi (90) + alef (1) = 591, 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
- Lucky number (mathematical sieve)
Related numbers & connections
Bolivia and Paraguay are the two landlocked countries of South America, and both fought the Chaco War over territory believed to hold oil.
View 595 →Nearby in a sequence
- is adjacent to595
why?
Strength 0.50, confidence "high".
Geography
+591 reaches Bolivia, whose administrative capital La Paz sits at about 3,600 m, the highest seat of government anywhere.
DocumentedGeographyGeography: Bolivia
Common questions
Is 591 a prime number?
No, 591 is not prime.
What are the factors of 591?
The factors of 591 are 1, 3, 197, 591.
What is 591 in Roman numerals?
591 in Roman numerals is DXCI. XC is subtractive: ten before a hundred — a hundred minus ten. Written additively it would be DLXXXXI, 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