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.
Same number, different meanings
How 1522 is understood across different contexts — never implying one meaning because of another.
- Mathematics
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.
- History
In 1522, the surviving ship of Magellan's expedition completed the first circumnavigation, having sailed on for three years after his death.
- 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.
1522 is part of
Factors & digit properties
- Divisors (4)
- 1, 2, 761, 1522
- Prime factorisation
- 2 × 761
- Digit sum
- 10
- Digital root
- 1
Representations
- Decimal
- 1522
- Scientific notation
- 1.522 × 10^3
Roman numerals
M D X X I I
Binary
1 0 1 1 1 1 1 0 0 1 0
1 × 1,024 + 0 × 512 + 1 × 256 + 1 × 128 + 1 × 64 + 1 × 32 + 1 × 16 + 0 × 8 + 0 × 4 + 1 × 2 + 0 × 1 = 1,522
Octal
2 7 6 2
2 × 512 + 7 × 64 + 6 × 8 + 2 × 1 = 1,522
Hexadecimal
5 f 2
5 × 256 + f × 16 + 2 × 1 = 1,522
Read as powers of two: 1,024 + 256 + 128 + 64 + 32 + 16 + 2 = 1,522.
In historical numeral systems
Egyptian
1 lotus, 5 coils of rope, 2 hobbles, 2 strokes
1 × 1,000 + 5 × 100 + 2 × 10 + 2 × 1 = 1,522. 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), 2 corner wedges + 2 vertical wedges (units place)
25 × 60 + 22 = 1522. 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
- Deficient number
- Semiprime
Related numbers & connections
1522 is a year in the 16th century, in the 1520s.
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 →Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
Other connections
- developed from1519
why?
Strength 0.50, confidence "high".
History
In 1522, the surviving ship of Magellan's expedition completed the first circumnavigation, having sailed on for three years after his death.
DocumentedHistoryGeography: globalPeriod: 1522
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: 2 reviewer-confirmed records, sourced and reviewed before publication.
Last reviewed: 15 July 2026