1564
1564 is the year Shakespeare and Galileo were born.
- Even
- Composite
Why 1564 is special
Michelangelo died the same year. Shakespeare's exact birth date is unknown — only the baptism on 26 April is recorded — and the traditional 23 April is an assumption that happens to match the date of his death.
Factors & digit properties
- Divisors (12)
- 1, 2, 4, 17, 23, 34, 46, 68, 92, 391, 782, 1564
- Prime factorisation
- 2^2 × 17 × 23
- Digit sum
- 16
- Digital root
- 7
Representations
- Decimal
- 1564
- Binary
- 11000011100
- Octal
- 3034
- Hexadecimal
- 61c
- Roman numeral
- MDLXIV
- Scientific notation
- 1.564 × 10^3
Other mathematical patterns
- Deficient number
Culture
Shakespeare's baptism on 26 April 1564 is documented; his birth is not. The traditional 23 April is an inference that conveniently matches his death date. Galileo was born the same year and Michelangelo died in it.
DocumentedCulturePeriod: 1564
Common questions
Is 1564 a prime number?
No, 1564 is not prime.
What are the factors of 1564?
The factors of 1564 are 1, 2, 4, 17, 23, 34, 46, 68, 92, 391, 782, 1564.
What is 1564 in Roman numerals?
1564 in Roman numerals is MDLXIV.
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