319
The Airbus A319 is the shortened A320 and the basis of the corporate ACJ variant.
- Odd
- Composite
Where 319 fits
Why 319 is special
Shortening a fuselage while keeping the wing and engines gives excess power and range, which is why short variants of airliners tend to become the executive versions.
319 is part of
Factors & digit properties
- Divisors (4)
- 1, 11, 29, 319
- Prime factorisation
- 11 × 29
- Digit sum
- 13
- Digital root
- 4
Representations
- Decimal
- 319
- Scientific notation
- 3.190 × 10^2
Roman numerals
C C C X I X
CCCXIX uses the subtractive pair IX: one before ten — ten minus one.
Binary
1 0 0 1 1 1 1 1 1
1 × 256 + 0 × 128 + 0 × 64 + 1 × 32 + 1 × 16 + 1 × 8 + 1 × 4 + 1 × 2 + 1 × 1 = 319
Octal
4 7 7
4 × 64 + 7 × 8 + 7 × 1 = 319
Hexadecimal
1 3 f
1 × 256 + 3 × 16 + f × 1 = 319
Read as powers of two: 256 + 32 + 16 + 8 + 4 + 2 + 1 = 319.
In historical numeral systems
Egyptian
3 coils of rope, 1 hobble, 9 strokes
3 × 100 + 1 × 10 + 9 × 1 = 319. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
5 vertical wedges (sixties place), 1 corner wedge + 9 vertical wedges (units place)
5 × 60 + 19 = 319. Places are separated by a space on the tablet, with the higher place written first.
Greek (Ionic)
tau, then iota, then theta, marked as a numeral
tau-iota-theta + keraia
tau + iota + theta written in descending order and added — the letters carry their values wherever they stand, so this is addition, not place value.
Hebrew numerals
shin, then yod, then tet
shin-yod-tet
shin (300) + yod (10) + tet (9) = 319, written in descending order.
Maya
3 bars (upper, twenties place) over 3 bars + 4 dots (lower, units place)
15 × 20 + 19 = 319. 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
- Semiprime
- Lucky number (mathematical sieve)
Related numbers & connections
One weakness is data unprotected at rest and the other data unprotected in transit.
View 312 →Technology & computing
CWE-319 is cleartext transmission of sensitive information, distinguished from CWE-312 in that the exposure occurs on the network rather than at rest.
DocumentedTechnology & computingGeography: International — MITRE CWEPeriod: 2006–Cutting length while keeping the wing and engines leaves an aircraft over-powered for its weight, giving range that suits corporate use. The pattern repeats across manufacturers.
DocumentedTechnology & computing
Common questions
Is 319 a prime number?
No, 319 is not prime.
What are the factors of 319?
The factors of 319 are 1, 11, 29, 319.
What is 319 in Roman numerals?
319 in Roman numerals is CCCXIX. IX is subtractive: one before ten — ten minus one. Written additively it would be CCCXVIIII, 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: 2 reviewer-confirmed records, sourced and reviewed before publication.
Last reviewed: 15 July 2026