1778
1778 is the year Cook reached Hawaii.
- Even
- Composite
Where 1778 fits
Why 1778 is special
He was killed there the following year. Introduced diseases reduced the Hawaiian population catastrophically over the following century, a pattern repeated across the Pacific.
1778 is part of
Factors & digit properties
- Divisors (8)
- 1, 2, 7, 14, 127, 254, 889, 1778
- Prime factorisation
- 2 × 7 × 127
- Digit sum
- 23
- Digital root
- 5
Representations
- Decimal
- 1778
- Scientific notation
- 1.778 × 10^3
Roman numerals
M D C C L X X V I I I
Binary
1 1 0 1 1 1 1 0 0 1 0
1 × 1,024 + 1 × 512 + 0 × 256 + 1 × 128 + 1 × 64 + 1 × 32 + 1 × 16 + 0 × 8 + 0 × 4 + 1 × 2 + 0 × 1 = 1,778
Octal
3 3 6 2
3 × 512 + 3 × 64 + 6 × 8 + 2 × 1 = 1,778
Hexadecimal
6 f 2
6 × 256 + f × 16 + 2 × 1 = 1,778
Read as powers of two: 1,024 + 512 + 128 + 64 + 32 + 16 + 2 = 1,778.
In historical numeral systems
Egyptian
1 lotus, 7 coils of rope, 7 hobbles, 8 strokes
1 × 1,000 + 7 × 100 + 7 × 10 + 8 × 1 = 1,778. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
2 corner wedges + 9 vertical wedges (sixties place), 3 corner wedges + 8 vertical wedges (units place)
29 × 60 + 38 = 1778. 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
Related numbers & connections
1778 is a year in the 18th century, in the 1770s.
Cook's first voyage set out in 1768 and he reached Hawaii in 1778, where he was killed the following year. Introduced disease followed contact across the Pacific.
View 1768 →Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
Other connections
- developed from1768
why?
Strength 0.50, confidence "high".
History
In 1778, Voltaire and Rousseau both died within weeks of one another (France).
DocumentedHistoryGeography: FrancePeriod: 1778Cook's arrival in Hawaii in 1778 was followed by introduced epidemics that reduced the population by a large proportion over the following century. The pattern held across the Pacific and is the dominant demographic fact of the contact period.
DocumentedHistoryGeography: HawaiiPeriod: 1778
Common questions
Is 1778 a prime number?
No, 1778 is not prime.
What are the factors of 1778?
The factors of 1778 are 1, 2, 7, 14, 127, 254, 889, 1778.
What is 1778 in Roman numerals?
1778 in Roman numerals is MDCCLXXVIII.
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