1800
1800 is the year Volta produced the first battery.
- Even
- Composite
Where 1800 fits
Why 1800 is special
A stack of alternating metal discs gave a steady electric current, where previously only static discharge was available. Continuous current is what made electrochemistry, electromagnetism and the telegraph possible.
Same number, different meanings
How 1800 is understood across different contexts — never implying one meaning because of another.
- Mathematics
A stack of alternating metal discs gave a steady electric current, where previously only static discharge was available. Continuous current is what made electrochemistry, electromagnetism and the telegraph possible.
- Technology & computing
In 1800, Alessandro Volta described the electric battery (Italy).
- Science
Before Volta's pile, electricity meant a brief static discharge. A continuous current made it possible to study electricity's effects over time, which is the precondition for electromagnetism and everything built on it.
1800 is part of
Factors & digit properties
- Divisors (36)
- 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 72, 75, 90, 100, 120, 150, 180, 200, 225, 300, 360, 450, 600, 900, 1800
- Prime factorisation
- 2^3 × 3^2 × 5^2
- Digit sum
- 9
- Digital root
- 9
Representations
- Decimal
- 1800
- Scientific notation
- 1.800 × 10^3
Roman numerals
M D C C C
Binary
1 1 1 0 0 0 0 1 0 0 0
1 × 1,024 + 1 × 512 + 1 × 256 + 0 × 128 + 0 × 64 + 0 × 32 + 0 × 16 + 1 × 8 + 0 × 4 + 0 × 2 + 0 × 1 = 1,800
Octal
3 4 1 0
3 × 512 + 4 × 64 + 1 × 8 + 0 × 1 = 1,800
Hexadecimal
7 0 8
7 × 256 + 0 × 16 + 8 × 1 = 1,800
Read as powers of two: 1,024 + 512 + 256 + 8 = 1,800.
In historical numeral systems
Egyptian
1 lotus, 8 coils of rope
1 × 1,000 + 8 × 100 = 1,800. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
3 corner wedges (sixties place), empty units place
30 × 60 + 0 = 1800. Places are separated by a space on the tablet, with the higher place written first. The second place is empty, and this is precisely the case the early system could not write unambiguously — the same wedges alone would also read as 1.
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
- Abundant number
- Powerful number
- Harshad (Niven) number
Related numbers & connections
1800 is a year in the 18th century, in the 1800s.
Volta's pile gave steady current in 1800 and Faraday showed how to generate it from motion in 1831. Between them they made electricity something that could be produced at scale rather than stored.
View 1831 →Technology & computing
In 1800, Alessandro Volta described the electric battery (Italy).
DocumentedTechnology & computingGeography: ItalyPeriod: 1800IEEE 1800 defines SystemVerilog, extending Verilog with constrained-random stimulus, assertions and object-oriented constructs, so verification environments and designs use one language.
DocumentedTechnology & computingGeography: International — IEEEPeriod: 2005–
Science
Before Volta's pile, electricity meant a brief static discharge. A continuous current made it possible to study electricity's effects over time, which is the precondition for electromagnetism and everything built on it.
DocumentedSciencePeriod: 1800
Common questions
Is 1800 a prime number?
No, 1800 is not prime.
What are the factors of 1800?
The factors of 1800 are 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 72, 75, 90, 100, 120, 150, 180, 200, 225, 300, 360, 450, 600, 900, 1800.
What is 1800 in Roman numerals?
1800 in Roman numerals is MDCCC.
About this page's data
Mathematical facts:computed directly from the number's value — nothing to source or verify externally.
Contextual records: 3 reviewer-confirmed records, sourced and reviewed before publication.
Last reviewed: 15 July 2026