1630
1630 is the year Kepler died.
- Even
- Composite
Where 1630 fits
Why 1630 is special
He had found the laws governing planetary motion and spent years defending his mother against a witchcraft prosecution. His grave was destroyed within two years by the Thirty Years' War.
Same number, different meanings
How 1630 is understood across different contexts — never implying one meaning because of another.
- Mathematics
He had found the laws governing planetary motion and spent years defending his mother against a witchcraft prosecution. His grave was destroyed within two years by the Thirty Years' War.
- History
In 1630, Boston was founded by Puritan colonists in Massachusetts Bay (North America).
- Science
Kepler established that planets move in ellipses and also spent six years defending his mother in a witch trial. His burial place was destroyed by the war within two years of his death in 1630.
1630 is part of
Factors & digit properties
- Divisors (8)
- 1, 2, 5, 10, 163, 326, 815, 1630
- Prime factorisation
- 2 × 5 × 163
- Digit sum
- 10
- Digital root
- 1
Representations
- Decimal
- 1630
- Scientific notation
- 1.630 × 10^3
Roman numerals
M D C X X X
Binary
1 1 0 0 1 0 1 1 1 1 0
1 × 1,024 + 1 × 512 + 0 × 256 + 0 × 128 + 1 × 64 + 0 × 32 + 1 × 16 + 1 × 8 + 1 × 4 + 1 × 2 + 0 × 1 = 1,630
Octal
3 1 3 6
3 × 512 + 1 × 64 + 3 × 8 + 6 × 1 = 1,630
Hexadecimal
6 5 e
6 × 256 + 5 × 16 + e × 1 = 1,630
Read as powers of two: 1,024 + 512 + 64 + 16 + 8 + 4 + 2 = 1,630.
In historical numeral systems
Egyptian
1 lotus, 6 coils of rope, 3 hobbles
1 × 1,000 + 6 × 100 + 3 × 10 = 1,630. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
2 corner wedges + 7 vertical wedges (sixties place), 1 corner wedge (units place)
27 × 60 + 10 = 1630. 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
1630 is a year in the 17th century, in the 1630s.
Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
History
In 1630, Boston was founded by Puritan colonists in Massachusetts Bay (North America).
DocumentedHistoryGeography: North AmericaPeriod: 1630
Science
Kepler established that planets move in ellipses and also spent six years defending his mother in a witch trial. His burial place was destroyed by the war within two years of his death in 1630.
DocumentedSciencePeriod: 1630
Common questions
Is 1630 a prime number?
No, 1630 is not prime.
What are the factors of 1630?
The factors of 1630 are 1, 2, 5, 10, 163, 326, 815, 1630.
What is 1630 in Roman numerals?
1630 in Roman numerals is MDCXXX.
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