21427731690
21,427,731,690 is an even composite number composed of seven prime numbers multiplied together.
21427731690 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 21427731690:
2 × 3 × 5 × 61 × 79 × 103 × 1439
See below for interesting mathematical facts about the number 21427731690 from the Numbermatics database.
Names of 21427731690
- Cardinal: 21427731690 can be written as Twenty-one billion, four hundred twenty-seven million, seven hundred thirty-one thousand, six hundred ninety.
Scientific notation
- Scientific notation: 2.142773169 × 1010
Factors of 21427731690
Divisors of 21427731690
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 3 5 6 10 15 30 61 79 103 122 158 183 206 237 305 309 366 395 474 515 610 618 790 915 1030 1185 1439 1545 1830 2370 2878 3090 4317 4819 6283 7195 8137 8634 9638 12566 14390 14457 16274 18849 21585 24095 24411 28914 31415 37698 40685 43170 48190 48822 62830 72285 81370 87779 94245 113681 122055 144570 148217 175558 188490 227362 244110 263337 296434 341043 438895 444651 496357 526674 568405 682086 741085 877790 889302 992714 1136810 1316685 1482170 1489071 1705215 2223255 2481785 2633370 2978142 3410430 4446510 4963570 6934541 7445355 9041237 11709143 13869082 14890710 18082474 20803623 23418286 27123711 34672705 35127429 41607246 45206185 54247422 58545715 69345410 70254858 90412370 104018115 117091430 135618555 175637145 208036230 271237110 351274290 714257723 1428515446 2142773169 3571288615 4285546338 7142577230 10713865845 21427731690
- Sum of all divisors σ(n): 53482291200
- Sum of proper divisors (its aliquot sum) s(n): 32054559510
- 21427731690 is an abundant number, because the sum of its proper divisors (32054559510) is greater than itself. Its abundance is 10626827820
Bases of 21427731690
- Binary: 100111111010011000100111100111010102
- Hexadecimal: 0x4FD313CEA
- Base-36: 9UDINL6
Squares and roots of 21427731690
- 21427731690 squared (214277316902) is 459147685378630256100
- 21427731690 cubed (214277316903) is 9838493408377825187426785809000
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The
square root of 21427731690 is 146382.1426609133 -
The
cube root of 21427731690 is 2777.5298387299
Scales and comparisons
How big is 21427731690?- 21,427,731,690 seconds is equal to 681 years, 17 weeks, 3 days, 3 hours, 41 minutes, 30 seconds.
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To count from 1 to 21,427,731,690 would take you about one thousand, three hundred sixty-two years!
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 21427731690 cubic inches would be around 231.5 feet tall.
Recreational maths with 21427731690
- 21427731690 backwards is 09613772412
- The number of decimal digits it has is: 11
- The sum of 21427731690's digits is 42
- More coming soon!
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The information we have on file for 21427731690 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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