12,288
12288 is the ideographic space.
- Even
- Composite
Where 12,288 fits
Why 12,288 is special
It is a space the width of a full character, which is what makes Japanese and Chinese text align in fixed-width layouts.
Factors & digit properties
- Divisors (26)
- 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 256, 384, 512, 768, 1024, 1536, 2048, 3072, 4096, 6144, 12288
- Prime factorisation
- 2^12 × 3
- Digit sum
- 21
- Digital root
- 3
Representations
- Decimal
- 12288
- Scientific notation
- 1.229 × 10^4
Roman numerals
Roman numerals as modelled here goes up to 3,999.
Binary
1 1 0 0 0 0 0 0 0 0 0 0 0 0
1 × 8,192 + 1 × 4,096 + 0 × 2,048 + 0 × 1,024 + 0 × 512 + 0 × 256 + 0 × 128 + 0 × 64 + 0 × 32 + 0 × 16 + 0 × 8 + 0 × 4 + 0 × 2 + 0 × 1 = 12,288
Octal
3 0 0 0 0
3 × 4,096 + 0 × 512 + 0 × 64 + 0 × 8 + 0 × 1 = 12,288
Hexadecimal
3 0 0 0
3 × 4,096 + 0 × 256 + 0 × 16 + 0 × 1 = 12,288
Read as powers of two: 8,192 + 4,096 = 12,288.
In historical numeral systems
Egyptian
1 finger, 2 lotuses, 2 coils of rope, 8 hobbles, 8 strokes
1 × 10,000 + 2 × 1,000 + 2 × 100 + 8 × 10 + 8 × 1 = 12,288. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
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
Related numbers & connections
One is a space the width of a whole character and the other a space with no width at all.
View 8203 →Other connections
- contrasts with8203
why?
Strength 0.50, confidence "high".
Technology & computing
U+3000 IDEOGRAPHIC SPACE is a full-width space matching the advance width of East Asian characters, used where variable-width spacing would break alignment.
DocumentedTechnology & computingGeography: International — Unicode ConsortiumPeriod: 1991–
Common questions
Is 12,288 a prime number?
No, 12,288 is not prime.
What are the factors of 12,288?
The factors of 12,288 are 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 256, 384, 512, 768, 1024, 1536, 2048, 3072, 4096, 6144, 12288.
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