21142770
21,142,770 is an even composite number composed of six prime numbers multiplied together.
21142770 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 21142770:
2 × 3 × 5 × 11 × 79 × 811
See below for interesting mathematical facts about the number 21142770 from the Numbermatics database.
Names of 21142770
- Cardinal: 21142770 can be written as Twenty-one million, one hundred forty-two thousand, seven hundred seventy.
Scientific notation
- Scientific notation: 2.114277 × 107
Factors of 21142770
Divisors of 21142770
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 3 5 6 10 11 15 22 30 33 55 66 79 110 158 165 237 330 395 474 790 811 869 1185 1622 1738 2370 2433 2607 4055 4345 4866 5214 8110 8690 8921 12165 13035 17842 24330 26070 26763 44605 53526 64069 89210 128138 133815 192207 267630 320345 384414 640690 704759 961035 1409518 1922070 2114277 3523795 4228554 7047590 10571385 21142770
- Sum of all divisors σ(n): 56125440
- Sum of proper divisors (its aliquot sum) s(n): 34982670
- 21142770 is an abundant number, because the sum of its proper divisors (34982670) is greater than itself. Its abundance is 13839900
Bases of 21142770
- Binary: 10100001010011100111100102
- Hexadecimal: 0x1429CF2
- Base-36: CL5V6
Squares and roots of 21142770
- 21142770 squared (211427702) is 447016723272900
- 21142770 cubed (211427703) is 9451171766312571933000
-
The
square root of 21142770 is 4598.1267925101 -
The
cube root of 21142770 is 276.5162308563
Scales and comparisons
How big is 21142770?- 21,142,770 seconds is equal to 34 weeks, 6 days, 16 hours, 59 minutes, 30 seconds.
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To count from 1 to 21,142,770 would take you about three days!
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 21142770 cubic inches would be around 23 feet tall.
Recreational maths with 21142770
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The information we have on file for 21142770 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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