18,000
ISO/IEC 18000 defines RFID air interfaces.
- Even
- Composite
Where 18,000 fits
Why 18,000 is special
Its part 6C is the standard behind retail item tagging, where a single reader can inventory a room of goods without line of sight.
Factors & digit properties
- Divisors (60)
- 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 36, 40, 45, 48, 50, 60, 72, 75, 80, 90, 100, 120, 125, 144, 150, 180, 200, 225, 240, 250, 300, 360, 375, 400, 450, 500, 600, 720, 750, 900, 1000, 1125, 1200, 1500, 1800, 2000, 2250, 3000, 3600, 4500, 6000, 9000, 18000
- Prime factorisation
- 2^4 × 3^2 × 5^3
- Digit sum
- 9
- Digital root
- 9
Representations
- Decimal
- 18000
- Scientific notation
- 1.800 × 10^4
Roman numerals
Roman numerals as modelled here goes up to 3,999.
Binary
1 0 0 0 1 1 0 0 1 0 1 0 0 0 0
1 × 16,384 + 0 × 8,192 + 0 × 4,096 + 0 × 2,048 + 1 × 1,024 + 1 × 512 + 0 × 256 + 0 × 128 + 1 × 64 + 0 × 32 + 1 × 16 + 0 × 8 + 0 × 4 + 0 × 2 + 0 × 1 = 18,000
Octal
4 3 1 2 0
4 × 4,096 + 3 × 512 + 1 × 64 + 2 × 8 + 0 × 1 = 18,000
Hexadecimal
4 6 5 0
4 × 4,096 + 6 × 256 + 5 × 16 + 0 × 1 = 18,000
Read as powers of two: 16,384 + 1,024 + 512 + 64 + 16 = 18,000.
In historical numeral systems
Egyptian
1 finger, 8 lotuses
1 × 10,000 + 8 × 1,000 = 18,000. 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
- Powerful number
- Harshad (Niven) number
Related numbers & connections
Both specify radio-frequency identification air interfaces, at different ranges and for different purposes.
View 15693 →Other connections
- is associated with15693
why?
Strength 0.50, confidence "high".
Technology & computing
ISO/IEC 18000 specifies air interface parameters for radio-frequency identification at several frequency bands. Part 6 covers the UHF band used for supply chain and retail item-level tagging.
DocumentedTechnology & computingGeography: International — ISO member bodiesPeriod: 2004–
Common questions
Is 18,000 a prime number?
No, 18,000 is not prime.
What are the factors of 18,000?
The factors of 18,000 are 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 36, 40, 45, 48, 50, 60, 72, 75, 80, 90, 100, 120, 125, 144, 150, 180, 200, 225, 240, 250, 300, 360, 375, 400, 450, 500, 600, 720, 750, 900, 1000, 1125, 1200, 1500, 1800, 2000, 2250, 3000, 3600, 4500, 6000, 9000, 18000.
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