1716
1716 is the year the first practical diving bell with replenished air was demonstrated.
- Even
- Composite
Where 1716 fits
Why 1716 is special
Halley's design sent weighted barrels of air down to the bell, allowing hours underwater rather than minutes. The same problem — supplying air at depth — defines diving technology ever since.
Factors & digit properties
- Divisors (24)
- 1, 2, 3, 4, 6, 11, 12, 13, 22, 26, 33, 39, 44, 52, 66, 78, 132, 143, 156, 286, 429, 572, 858, 1716
- Prime factorisation
- 2^2 × 3 × 11 × 13
- Digit sum
- 15
- Digital root
- 6
Representations
- Decimal
- 1716
- Binary
- 11010110100
- Octal
- 3264
- Hexadecimal
- 6b4
- Roman numeral
- MDCCXVI
- Scientific notation
- 1.716 × 10^3
Other mathematical patterns
- Abundant number
Related numbers & connections
Halley designed a resupplied diving bell in 1716 and predicted the comet's 1758 return. Both are applications of the same willingness to work out a system's behaviour in advance.
View 1758 →Technology & computing
Halley's 1716 diving bell was resupplied by weighted barrels lowered from the surface, extending working time from minutes to hours. Every later development addresses the same constraint.
DocumentedTechnology & computingGeography: EnglandPeriod: 1716
Common questions
Is 1716 a prime number?
No, 1716 is not prime.
What are the factors of 1716?
The factors of 1716 are 1, 2, 3, 4, 6, 11, 12, 13, 22, 26, 33, 39, 44, 52, 66, 78, 132, 143, 156, 286, 429, 572, 858, 1716.
What is 1716 in Roman numerals?
1716 in Roman numerals is MDCCXVI.
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: 3 August 2026