1522
1522 is the year the first circumnavigation of the globe was completed.
- Even
- Composite
Where 1522 fits
Why 1522 is special
One ship of five returned, carrying eighteen of about 270 who had set out three years earlier. The survivors also found their calendar was a day behind, which was the first practical demonstration that travelling west loses a day.
Factors & digit properties
- Divisors (4)
- 1, 2, 761, 1522
- Prime factorisation
- 2 × 761
- Digit sum
- 10
- Digital root
- 1
Representations
- Decimal
- 1522
- Binary
- 10111110010
- Octal
- 2762
- Hexadecimal
- 5f2
- Roman numeral
- MDXXII
- Scientific notation
- 1.522 × 10^3
Other mathematical patterns
- Deficient number
- Semiprime
Related numbers & connections
Magellan's expedition left in 1519 and returned in 1522 without him. Eighteen of about 270 men completed the first circumnavigation, and their log was a day behind.
View 1519 →Other connections
- developed from1519
why?
Strength 0.50, confidence "high".
Geography
The survivors of the first circumnavigation returned in 1522 to find their carefully kept log was one day behind everyone on shore. Sailing west against the Earth's rotation costs a day, and the discovery was made by people who had no framework to expect it.
DocumentedGeographyGeography: SpainPeriod: 1522
Common questions
Is 1522 a prime number?
No, 1522 is not prime.
What are the factors of 1522?
The factors of 1522 are 1, 2, 761, 1522.
What is 1522 in Roman numerals?
1522 in Roman numerals is MDXXII.
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