1018
1018 is a low-carbon steel.
- Even
- Composite
Where 1018 fits
Why 1018 is special
It is the mild steel of workshops and weld shops, chosen because it welds without preheat and forms without cracking.
Same number, different meanings
How 1018 is understood across different contexts — never implying one meaning because of another.
- Mathematics
It is the mild steel of workshops and weld shops, chosen because it welds without preheat and forms without cracking.
- History
In 1018, Byzantine forces completed the conquest of Bulgaria (Balkans).
- Technology & computing
AISI 1018 is a low-carbon steel with good weldability and formability, commonly supplied as cold-drawn bar for general fabrication.
1018 is part of
Factors & digit properties
- Divisors (4)
- 1, 2, 509, 1018
- Prime factorisation
- 2 × 509
- Digit sum
- 10
- Digital root
- 1
Representations
- Decimal
- 1018
- Scientific notation
- 1.018 × 10^3
Roman numerals
M X V I I I
Binary
1 1 1 1 1 1 1 0 1 0
1 × 512 + 1 × 256 + 1 × 128 + 1 × 64 + 1 × 32 + 1 × 16 + 1 × 8 + 0 × 4 + 1 × 2 + 0 × 1 = 1,018
Octal
1 7 7 2
1 × 512 + 7 × 64 + 7 × 8 + 2 × 1 = 1,018
Hexadecimal
3 f a
3 × 256 + f × 16 + a × 1 = 1,018
Read as powers of two: 512 + 256 + 128 + 64 + 32 + 16 + 8 + 2 = 1,018.
In historical numeral systems
Egyptian
1 lotus, 1 hobble, 8 strokes
1 × 1,000 + 1 × 10 + 8 × 1 = 1,018. 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 + 8 vertical wedges (units place)
16 × 60 + 58 = 1018. 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
- Semiprime
Related numbers & connections
1018 is a year in the 11th century, in the 1010s.
Mild steel bar and structural steel plate are the two forms most fabrication starts from.
View 36 →History
In 1018, Byzantine forces completed the conquest of Bulgaria (Balkans).
DocumentedHistoryGeography: BalkansPeriod: 1018
Technology & computing
AISI 1018 is a low-carbon steel with good weldability and formability, commonly supplied as cold-drawn bar for general fabrication.
DocumentedTechnology & computingGeography: International — AISI, SAE and Aluminium Association designations
Common questions
Is 1018 a prime number?
No, 1018 is not prime.
What are the factors of 1018?
The factors of 1018 are 1, 2, 509, 1018.
What is 1018 in Roman numerals?
1018 in Roman numerals is MXVIII.
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