1017
UN 1017 is chlorine.
- Odd
- Composite
Where 1017 fits
Why 1017 is special
It was used as a weapon in the First World War and is used to make drinking water safe, and the transport regulations treat it as the hazard it is in both cases.
1017 connects to:
- historical years — appears in
- 1005 — contrasts with
Same number, different meanings
How 1017 is understood across different contexts — never implying one meaning because of another.
- Mathematics
It was used as a weapon in the First World War and is used to make drinking water safe, and the transport regulations treat it as the hazard it is in both cases.
- History
In 1017, Cnut divided England into four earldoms, and the term earl entered English administration (England).
- Technology & computing
UN 1017 identifies chlorine, classified as a toxic gas that is also oxidising and corrosive. It is transported in pressurised containers under strict conditions.
1017 is part of
Factors & digit properties
- Divisors (6)
- 1, 3, 9, 113, 339, 1017
- Prime factorisation
- 3^2 × 113
- Digit sum
- 9
- Digital root
- 9
Representations
- Decimal
- 1017
- Scientific notation
- 1.017 × 10^3
Roman numerals
M X V I I
Binary
1 1 1 1 1 1 1 0 0 1
1 × 512 + 1 × 256 + 1 × 128 + 1 × 64 + 1 × 32 + 1 × 16 + 1 × 8 + 0 × 4 + 0 × 2 + 1 × 1 = 1,017
Octal
1 7 7 1
1 × 512 + 7 × 64 + 7 × 8 + 1 × 1 = 1,017
Hexadecimal
3 f 9
3 × 256 + f × 16 + 9 × 1 = 1,017
Read as powers of two: 512 + 256 + 128 + 64 + 32 + 16 + 8 + 1 = 1,017.
In historical numeral systems
Egyptian
1 lotus, 1 hobble, 7 strokes
1 × 1,000 + 1 × 10 + 7 × 1 = 1,017. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
1 corner wedge + 6 vertical wedges (sixties place), 5 corner wedges + 7 vertical wedges (units place)
16 × 60 + 57 = 1017. Places are separated by a space on the tablet, with the higher place written first.
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
- Harshad (Niven) number
Related numbers & connections
1017 is a year in the 11th century, in the 1010s.
Ammonia and chlorine are both toxic gases in everyday industrial use, and both are transported under strict pressurised conditions.
View 1005 →Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
Other connections
- contrasts with1005
why?
Strength 0.50, confidence "high".
History
In 1017, Cnut divided England into four earldoms, and the term earl entered English administration (England).
DocumentedHistoryGeography: EnglandPeriod: 1017
Technology & computing
UN 1017 identifies chlorine, classified as a toxic gas that is also oxidising and corrosive. It is transported in pressurised containers under strict conditions.
DocumentedTechnology & computingGeography: International — UN model regulationsPeriod: 1956–
Common questions
Is 1017 a prime number?
No, 1017 is not prime.
What are the factors of 1017?
The factors of 1017 are 1, 3, 9, 113, 339, 1017.
What is 1017 in Roman numerals?
1017 in Roman numerals is MXVII.
About this page's data
Mathematical facts:computed directly from the number's value — nothing to source or verify externally.
Contextual records: 2 reviewer-confirmed records, sourced and reviewed before publication.
Last reviewed: 15 July 2026