1145 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.
Prime factorization of 1145:
5 × 229
See below for interesting mathematical facts about the number 1145 from the Numbermatics database.
Names of 1145
- Cardinal: 1145 can be written as One thousand, one hundred forty-five.
- Scientific notation: 1.145 × 103
Factors of 1145
Divisors of 1145
Bases of 1145
- Binary: 100011110012
- Hexadecimal: 0x479
- Base-36: VT
Squares and roots of 1145
Scales and comparisonsHow big is 1145?
- 1,145 seconds is equal to 19 minutes, 5 seconds.
To count from 1 to 1,145 would take you about nineteen 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 1145 cubic inches would be around 0.9 feet tall.
Recreational maths with 1145
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Cite this page
"Number 1145 - Facts about the integer". Numbermatics.com. 2021. Web. 15 May 2021.
Numbermatics. (2021). Number 1145 - Facts about the integer. Retrieved 15 May 2021, from https://numbermatics.com/n/1145/
Numbermatics. 2021. "Number 1145 - Facts about the integer". https://numbermatics.com/n/1145/
The information we have on file for 1145 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!
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