1800 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of thirty-six divisors.
Prime factorization of 1800:
23 × 32 × 52
(2 × 2 × 2 × 3 × 3 × 5 × 5)
23 × 32 × 52(2 × 2 × 2 × 3 × 3 × 5 × 5)
See below for interesting mathematical facts about the number 1800 from the Numbermatics database.
Names of 1800
- Cardinal: 1800 can be written as One thousand, eight hundred.
- Scientific notation: 1.8 × 103
Factors of 1800
- Number of distinct prime factors ω(n): 3
- Total number of prime factors Ω(n): 7
- Sum of prime factors: 10
Divisors of 1800
- Number of divisors d(n): 36
- Complete list of divisors:
- Sum of all divisors σ(n): 6045
- Sum of proper divisors (its aliquot sum) s(n): 4245
- 1800 is an abundant number, because the sum of its proper divisors (4245) is greater than itself. Its abundance is 2445
Bases of 1800
- Binary: 111000010002
- Hexadecimal: 0x708
- Base-36: 1E0
Squares and roots of 1800
- 1800 squared (18002) is 3240000
- 1800 cubed (18003) is 5832000000
square rootof 1800 is 42.4264068711
cube rootof 1800 is 12.1644039911
Scales and comparisonsHow big is 1800?
- 1,800 seconds is equal to 30 minutes.
To count from 1 to 1,800 would take you about thirty 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 1800 cubic inches would be around 1 feet tall.
Recreational maths with 1800
- 1800 backwards is 0081
- 1800 is a
- The number of decimal digits it has is: 4
- The sum of 1800's digits is 9
- More coming soon!
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Cite this page
"Number 1800 - Facts about the integer". Numbermatics.com. 2019. Web. 14 November 2019.
Numbermatics. (2019). Number 1800 - Facts about the integer. Retrieved 14 November 2019, from https://numbermatics.com/n/1800/
Numbermatics. 2019. "Number 1800 - Facts about the integer". https://numbermatics.com/n/1800/
The information we have on file for 1800 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!