21007206
21,007,206 is an even composite number composed of five prime numbers multiplied together.
21007206 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 21007206:
2 × 32 × 11 × 17 × 792
(2 × 3 × 3 × 11 × 17 × 79 × 79)See below for interesting mathematical facts about the number 21007206 from the Numbermatics database.
Names of 21007206
- Cardinal: 21007206 can be written as Twenty-one million, seven thousand, two hundred six.
Scientific notation
- Scientific notation: 2.1007206 × 107
Factors of 21007206
Divisors of 21007206
- Number of divisors d(n): 72
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Complete list of divisors:
1 2 3 6 9 11 17 18 22 33 34 51 66 79 99 102 153 158 187 198 237 306 374 474 561 711 869 1122 1343 1422 1683 1738 2607 2686 3366 4029 5214 6241 7821 8058 12087 12482 14773 15642 18723 24174 29546 37446 44319 56169 68651 88638 106097 112338 132957 137302 205953 212194 265914 318291 411906 617859 636582 954873 1167067 1235718 1909746 2334134 3501201 7002402 10503603 21007206
- Sum of all divisors σ(n): 53248104
- Sum of proper divisors (its aliquot sum) s(n): 32240898
- 21007206 is an abundant number, because the sum of its proper divisors (32240898) is greater than itself. Its abundance is 11233692
Bases of 21007206
- Binary: 10100000010001011011001102
- Hexadecimal: 0x1408B66
- Base-36: CI99I
Squares and roots of 21007206
- 21007206 squared (210072062) is 441302703926436
- 21007206 cubed (210072063) is 9270536809739649897816
-
The
square root of 21007206 is 4583.3618665779 -
The
cube root of 21007206 is 275.9239708667
Scales and comparisons
How big is 21007206?- 21,007,206 seconds is equal to 34 weeks, 5 days, 3 hours, 20 minutes, 6 seconds.
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To count from 1 to 21,007,206 would take you about seventeen hours!
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 21007206 cubic inches would be around 23 feet tall.
Recreational maths with 21007206
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Keywords: Divisors of 21007206, math, Factors of 21007206, curriculum, school, college, exams, university, Prime factorization of 21007206, STEM, science, technology, engineering, physics, economics, calculator, twenty-one million, seven thousand, two hundred six.