1278
1278 is a year in the 13th century. Rudolf of Habsburg defeated Ottokar II at the Marchfeld and took Austria for his family (Central Europe).
- Even
- Composite
Where 1278 fits
Why 1278 is special
1278 has a profile because of what happened in it rather than because of any property of the number: Rudolf of Habsburg defeated Ottokar II at the Marchfeld and took Austria for his family (Central Europe).
1278 is part of
Factors & digit properties
- Divisors (12)
- 1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278
- Prime factorisation
- 2 × 3^2 × 71
- Digit sum
- 18
- Digital root
- 9
Representations
- Decimal
- 1278
- Scientific notation
- 1.278 × 10^3
Roman numerals
M C C L X X V I I I
Binary
1 0 0 1 1 1 1 1 1 1 0
1 × 1,024 + 0 × 512 + 0 × 256 + 1 × 128 + 1 × 64 + 1 × 32 + 1 × 16 + 1 × 8 + 1 × 4 + 1 × 2 + 0 × 1 = 1,278
Octal
2 3 7 6
2 × 512 + 3 × 64 + 7 × 8 + 6 × 1 = 1,278
Hexadecimal
4 f e
4 × 256 + f × 16 + e × 1 = 1,278
Read as powers of two: 1,024 + 128 + 64 + 32 + 16 + 8 + 4 + 2 = 1,278.
In historical numeral systems
Egyptian
1 lotus, 2 coils of rope, 7 hobbles, 8 strokes
1 × 1,000 + 2 × 100 + 7 × 10 + 8 × 1 = 1,278. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
2 corner wedges + 1 vertical wedge (sixties place), 1 corner wedge + 8 vertical wedges (units place)
21 × 60 + 18 = 1278. 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
- Abundant number
- Harshad (Niven) number
Related numbers & connections
1278 is a year in the 13th century, in the 1270s.
Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
History
In 1278, Rudolf of Habsburg defeated Ottokar II at the Marchfeld and took Austria for his family (Central Europe).
DocumentedHistoryGeography: Central EuropePeriod: 1278
Common questions
Is 1278 a prime number?
No, 1278 is not prime.
What are the factors of 1278?
The factors of 1278 are 1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278.
What is 1278 in Roman numerals?
1278 in Roman numerals is MCCLXXVIII.
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: 15 July 2026