5535
5535 Annefrank was a rehearsal target for Stardust.
- Odd
- Composite
Where 5535 fits
Why 5535 is special
The flyby existed to practise the sequence that would be used at the comet, so the asteroid was a test rather than an objective.
Factors & digit properties
- Divisors (16)
- 1, 3, 5, 9, 15, 27, 41, 45, 123, 135, 205, 369, 615, 1107, 1845, 5535
- Prime factorisation
- 3^3 × 5 × 41
- Digit sum
- 18
- Digital root
- 9
Representations
- Decimal
- 5535
- Binary
- 1010110011111
- Octal
- 12637
- Hexadecimal
- 159f
- Scientific notation
- 5.535 × 10^3
Other mathematical patterns
- Deficient number
Related numbers & connections
Both were asteroid flybys performed by spacecraft whose real destination was a comet.
View 2867 →Both encounters were rehearsals or tests rather than scientific objectives in their own right.
View 9969 →Science
The Stardust spacecraft passed 5535 Annefrank in November 2002 as an engineering rehearsal for its later encounter with comet Wild 2.
DocumentedSciencePeriod: 1942–
Common questions
Is 5535 a prime number?
No, 5535 is not prime.
What are the factors of 5535?
The factors of 5535 are 1, 3, 5, 9, 15, 27, 41, 45, 123, 135, 205, 369, 615, 1107, 1845, 5535.
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