27,001
ISO 27001 is the international standard for information security management.
- Odd
- Composite
Where 27,001 fits
Why 27,001 is special
Like ISO 9001 it certifies a management system rather than an outcome: a certified organisation has documented how it handles security risk, which is not the same as being secure. It is nonetheless the certification most often demanded in enterprise procurement.
Factors & digit properties
- Divisors (8)
- 1, 13, 31, 67, 403, 871, 2077, 27001
- Prime factorisation
- 13 × 31 × 67
- Digit sum
- 10
- Digital root
- 1
Representations
- Decimal
- 27001
- Scientific notation
- 2.700 × 10^4
Roman numerals
Roman numerals as modelled here goes up to 3,999.
Binary
1 1 0 1 0 0 1 0 1 1 1 1 0 0 1
1 × 16,384 + 1 × 8,192 + 0 × 4,096 + 1 × 2,048 + 0 × 1,024 + 0 × 512 + 1 × 256 + 0 × 128 + 1 × 64 + 1 × 32 + 1 × 16 + 1 × 8 + 0 × 4 + 0 × 2 + 1 × 1 = 27,001
Octal
6 4 5 7 1
6 × 4,096 + 4 × 512 + 5 × 64 + 7 × 8 + 1 × 1 = 27,001
Hexadecimal
6 9 7 9
6 × 4,096 + 9 × 256 + 7 × 16 + 9 × 1 = 27,001
Read as powers of two: 16,384 + 8,192 + 2,048 + 256 + 64 + 32 + 16 + 8 + 1 = 27,001.
In historical numeral systems
Egyptian
2 fingers, 7 lotuses, 1 stroke
2 × 10,000 + 7 × 1,000 + 1 × 1 = 27,001. 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
ISO/IEC 27001 labels the information security management standard, routinely named by number in tender documents.
The privacy management system extends the security management system rather than standing on its own.
View 27701 →Numbers Around Us
- appears inNumbers assigned as identifiers
why?
Strength 0.50, confidence "high".
- appears alongside9001
why?
Strength 0.50, confidence "high".
- appears inStandards issued by an organisation
why?
Strength 0.50, confidence "high".
Technology & computing
ISO 27001 certifies an information security management system: the organisation has written down how it handles security risk. That is not the same as being secure, though it is the certification most commonly demanded in enterprise procurement.
DocumentedTechnology & computing
Common questions
Is 27,001 a prime number?
No, 27,001 is not prime.
What are the factors of 27,001?
The factors of 27,001 are 1, 13, 31, 67, 403, 871, 2077, 27001.
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