1518
1518 is a year in the 16th century. The sweating sickness returned to England, a disease that appeared five times and then vanished (Europe).
- Even
- Composite
Where 1518 fits
Why 1518 is special
1518 has a profile because of what happened in it rather than because of any property of the number: the sweating sickness returned to England, a disease that appeared five times and then vanished (Europe).
1518 is part of
Factors & digit properties
- Divisors (16)
- 1, 2, 3, 6, 11, 22, 23, 33, 46, 66, 69, 138, 253, 506, 759, 1518
- Prime factorisation
- 2 × 3 × 11 × 23
- Digit sum
- 15
- Digital root
- 6
Representations
- Decimal
- 1518
- Scientific notation
- 1.518 × 10^3
Roman numerals
M D X V I I I
Binary
1 0 1 1 1 1 0 1 1 1 0
1 × 1,024 + 0 × 512 + 1 × 256 + 1 × 128 + 1 × 64 + 1 × 32 + 0 × 16 + 1 × 8 + 1 × 4 + 1 × 2 + 0 × 1 = 1,518
Octal
2 7 5 6
2 × 512 + 7 × 64 + 5 × 8 + 6 × 1 = 1,518
Hexadecimal
5 e e
5 × 256 + e × 16 + e × 1 = 1,518
Read as powers of two: 1,024 + 256 + 128 + 64 + 32 + 8 + 4 + 2 = 1,518.
In historical numeral systems
Egyptian
1 lotus, 5 coils of rope, 1 hobble, 8 strokes
1 × 1,000 + 5 × 100 + 1 × 10 + 8 × 1 = 1,518. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
2 corner wedges + 5 vertical wedges (sixties place), 1 corner wedge + 8 vertical wedges (units place)
25 × 60 + 18 = 1518. 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
- Happy number
Related numbers & connections
1518 is a year in the 16th century, in the 1510s.
Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
History
In 1518, the sweating sickness returned to England, a disease that appeared five times and then vanished (Europe).
DocumentedHistoryGeography: EuropePeriod: 1518
Common questions
Is 1518 a prime number?
No, 1518 is not prime.
What are the factors of 1518?
The factors of 1518 are 1, 2, 3, 6, 11, 22, 23, 33, 46, 66, 69, 138, 253, 506, 759, 1518.
What is 1518 in Roman numerals?
1518 in Roman numerals is MDXVIII.
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