6,561 is an odd composite number. It is composed of a single prime number multiplied by itself seven times.
6561 is an odd composite number. It is composed of one distinct prime number multiplied by itself seven times. It has a total of nine divisors.
Prime factorization of 6561:
38(3 × 3 × 3 × 3 × 3 × 3 × 3 × 3)
See below for interesting mathematical facts about the number 6561 from the Numbermatics database.
Names of 6561
- Cardinal: 6561 can be written as Six thousand, five hundred sixty-one.
- Scientific notation: 6.561 × 103
Factors of 6561
Divisors of 6561
Bases of 6561
- Binary: 11001101000012
- Hexadecimal: 0x19A1
- Base-36: 529
Squares and roots of 6561
- 6561 squared (65612) is 43046721
- 6561 cubed (65613) is 282429536481
6561 is a
perfect square number. Its square rootis 81
cube rootof 6561 is 18.7207544077
Scales and comparisonsHow big is 6561?
- 6,561 seconds is equal to 1 hour, 49 minutes, 21 seconds.
To count from 1 to 6,561 would take you about forty-nine minutes.
This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
- A cube with a volume of 6561 cubic inches would be around 1.6 feet tall.
Recreational maths with 6561
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Cite this page
"Number 6561 - Facts about the integer". Numbermatics.com. 2023. Web. 2 June 2023.
Numbermatics. (2023). Number 6561 - Facts about the integer. Retrieved 2 June 2023, from https://numbermatics.com/n/6561/
Numbermatics. 2023. "Number 6561 - Facts about the integer". https://numbermatics.com/n/6561/
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