1626
1626 is the year Manhattan was purchased from local inhabitants.
- Even
- Composite
Why 1626 is special
A letter records goods worth 60 guilders. The Lenape almost certainly understood the transaction as shared use rather than permanent alienation, since exclusive land ownership was not a concept they held.
Factors & digit properties
- Divisors (8)
- 1, 2, 3, 6, 271, 542, 813, 1626
- Prime factorisation
- 2 × 3 × 271
- Digit sum
- 15
- Digital root
- 6
Representations
- Decimal
- 1626
- Binary
- 11001011010
- Octal
- 3132
- Hexadecimal
- 65a
- Roman numeral
- MDCXXVI
- Scientific notation
- 1.626 × 10^3
Other mathematical patterns
- Abundant number
Law & regulation
The 1626 Manhattan transaction is documented from one side only. Dutch law treated it as conveying title; Lenape practice had no equivalent of permanent exclusive ownership, so the parties are unlikely to have agreed on what occurred.
DocumentedLaw & regulationGeography: ManhattanPeriod: 1626
Common questions
Is 1626 a prime number?
No, 1626 is not prime.
What are the factors of 1626?
The factors of 1626 are 1, 2, 3, 6, 271, 542, 813, 1626.
What is 1626 in Roman numerals?
1626 in Roman numerals is MDCXXVI.
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