1005
UN 1005 is anhydrous ammonia.
- Odd
- Composite
Where 1005 fits
Why 1005 is special
It is refrigerant, fertiliser feedstock and acute inhalation hazard at once, which is why its transport is regulated far more tightly than its ubiquity suggests.
Factors & digit properties
- Divisors (8)
- 1, 3, 5, 15, 67, 201, 335, 1005
- Prime factorisation
- 3 × 5 × 67
- Digit sum
- 6
- Digital root
- 6
Representations
- Decimal
- 1005
- Binary
- 1111101101
- Octal
- 1755
- Hexadecimal
- 3ed
- Roman numeral
- MV
- Scientific notation
- 1.005 × 10^3
Other mathematical patterns
- Deficient number
Related numbers & connections
Both are UN dangerous goods entries displayed on the orange plate of a road tanker before anyone speaks to the driver.
View 1203 →Ammonia and chlorine are both toxic gases in everyday industrial use, and both are transported under strict pressurised conditions.
View 1017 →Technology & computing
UN 1005 identifies anhydrous ammonia, a toxic and corrosive gas transported under pressure and used extensively in refrigeration and fertiliser production.
DocumentedTechnology & computingGeography: International — UN model regulationsPeriod: 1956–
Common questions
Is 1005 a prime number?
No, 1005 is not prime.
What are the factors of 1005?
The factors of 1005 are 1, 3, 5, 15, 67, 201, 335, 1005.
What is 1005 in Roman numerals?
1005 in Roman numerals is MV.
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: 3 August 2026