1859
1859 is the year Darwin published On the Origin of Species.
- Odd
- Composite
Where 1859 fits
Why 1859 is special
The first print run sold out on the day of publication. Darwin had held the theory for twenty years and published when he did because Alfred Russel Wallace had independently reached the same conclusion and sent him the manuscript.
Factors & digit properties
- Divisors (6)
- 1, 11, 13, 143, 169, 1859
- Prime factorisation
- 11 × 13^2
- Digit sum
- 23
- Digital root
- 5
Representations
- Decimal
- 1859
- Binary
- 11101000011
- Octal
- 3503
- Hexadecimal
- 743
- Roman numeral
- MDCCCLIX
- Scientific notation
- 1.859 × 10^3
Other mathematical patterns
- Deficient number
Related numbers & connections
Darwin described inheritance working without knowing its mechanism; the double helix supplied the mechanism ninety-four years later.
View 1953 →Darwin described inheritance without a mechanism and Meitner and Frisch explained a result their collaborators could not. Both are cases where the interpretation mattered more than the observation.
View 1938 →Science
Darwin had held the theory for twenty years and published in 1859 only after Alfred Russel Wallace independently reached the same conclusion and sent him the manuscript. The first print run sold out on the day of publication.
DocumentedSciencePeriod: 1859
Common questions
Is 1859 a prime number?
No, 1859 is not prime.
What are the factors of 1859?
The factors of 1859 are 1, 11, 13, 143, 169, 1859.
What is 1859 in Roman numerals?
1859 in Roman numerals is MDCCCLIX.
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