15,189
ISO 15189 covers quality in medical laboratories.
- Odd
- Composite
Where 15,189 fits
Why 15,189 is special
It is the accreditation a hospital laboratory holds, distinct from ISO 17025, which covers testing and calibration laboratories generally.
15,189 is part of
Factors & digit properties
- Divisors (8)
- 1, 3, 61, 83, 183, 249, 5063, 15189
- Prime factorisation
- 3 × 61 × 83
- Digit sum
- 24
- Digital root
- 6
Representations
- Decimal
- 15189
- Scientific notation
- 1.519 × 10^4
Roman numerals
Roman numerals as modelled here goes up to 3,999.
Binary
1 1 1 0 1 1 0 1 0 1 0 1 0 1
1 × 8,192 + 1 × 4,096 + 1 × 2,048 + 0 × 1,024 + 1 × 512 + 1 × 256 + 0 × 128 + 1 × 64 + 0 × 32 + 1 × 16 + 0 × 8 + 1 × 4 + 0 × 2 + 1 × 1 = 15,189
Octal
3 5 5 2 5
3 × 4,096 + 5 × 512 + 5 × 64 + 2 × 8 + 5 × 1 = 15,189
Hexadecimal
3 b 5 5
3 × 4,096 + b × 256 + 5 × 16 + 5 × 1 = 15,189
Read as powers of two: 8,192 + 4,096 + 2,048 + 512 + 256 + 64 + 16 + 4 + 1 = 15,189.
In historical numeral systems
Egyptian
1 finger, 5 lotuses, 1 coil of rope, 8 hobbles, 9 strokes
1 × 10,000 + 5 × 1,000 + 1 × 100 + 8 × 10 + 9 × 1 = 15,189. 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
- Deficient number
- Lucky number (mathematical sieve)
Related numbers & connections
Clinical laboratories hold their own accreditation, distinct from testing laboratories generally.
ISO 15189 accredits clinical laboratories and ISO 17025 testing and calibration laboratories generally; hospitals hold the first.
View 17025 →Science
ISO 15189 specifies quality and competence requirements for medical laboratories, covering pre-examination, examination and post-examination processes including patient identification and result reporting.
DocumentedScienceGeography: International — ISO member bodiesPeriod: 2003–
Common questions
Is 15,189 a prime number?
No, 15,189 is not prime.
What are the factors of 15,189?
The factors of 15,189 are 1, 3, 61, 83, 183, 249, 5063, 15189.
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