1020
1020 is a year in the 11th century. Cnut founded the abbey at Assandun on the site of his victory over Edmund Ironside (England).
- Even
- Composite
Where 1020 fits
Why 1020 is special
1020 has a profile because of what happened in it rather than because of any property of the number: Cnut founded the abbey at Assandun on the site of his victory over Edmund Ironside (England).
1020 is part of
Factors & digit properties
- Divisors (24)
- 1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020
- Prime factorisation
- 2^2 × 3 × 5 × 17
- Digit sum
- 3
- Digital root
- 3
Representations
- Decimal
- 1020
- Scientific notation
- 1.020 × 10^3
Roman numerals
M X X
Binary
1 1 1 1 1 1 1 1 0 0
1 × 512 + 1 × 256 + 1 × 128 + 1 × 64 + 1 × 32 + 1 × 16 + 1 × 8 + 1 × 4 + 0 × 2 + 0 × 1 = 1,020
Octal
1 7 7 4
1 × 512 + 7 × 64 + 7 × 8 + 4 × 1 = 1,020
Hexadecimal
3 f c
3 × 256 + f × 16 + c × 1 = 1,020
Read as powers of two: 512 + 256 + 128 + 64 + 32 + 16 + 8 + 4 = 1,020.
In historical numeral systems
Egyptian
1 lotus, 2 hobbles
1 × 1,000 + 2 × 10 = 1,020. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
1 corner wedge + 7 vertical wedges (sixties place), empty units place
17 × 60 + 0 = 1020. Places are separated by a space on the tablet, with the higher place written first. The second place is empty, and this is precisely the case the early system could not write unambiguously — the same wedges alone would also read as 1.
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
1020 is a year in the 11th century, in the 1020s.
Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
History
In 1020, Cnut founded the abbey at Assandun on the site of his victory over Edmund Ironside (England).
DocumentedHistoryGeography: EnglandPeriod: 1020
Common questions
Is 1020 a prime number?
No, 1020 is not prime.
What are the factors of 1020?
The factors of 1020 are 1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020.
What is 1020 in Roman numerals?
1020 in Roman numerals is MXX.
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