21387317900
21,387,317,900 is an even composite number composed of seven prime numbers multiplied together.
21387317900 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 21387317900:
22 × 52 × 13 × 41 × 53 × 67 × 113
(2 × 2 × 5 × 5 × 13 × 41 × 53 × 67 × 113)See below for interesting mathematical facts about the number 21387317900 from the Numbermatics database.
Names of 21387317900
- Cardinal: 21387317900 can be written as Twenty-one billion, three hundred eighty-seven million, three hundred seventeen thousand, nine hundred.
Scientific notation
- Scientific notation: 2.13873179 × 1010
Factors of 21387317900
Divisors of 21387317900
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 4 5 10 13 20 25 26 41 50 52 53 65 67 82 100 106 113 130 134 164 205 212 226 260 265 268 325 335 410 452 530 533 565 650 670 689 820 871 1025 1060 1066 1130 1300 1325 1340 1378 1469 1675 1742 2050 2132 2173 2260 2650 2665 2747 2756 2825 2938 3350 3445 3484 3551 4100 4346 4355 4633 5300 5330 5494 5650 5876 5989 6700 6890 7102 7345 7571 8692 8710 9266 10660 10865 10988 11300 11978 13325 13735 13780 14204 14690 15142 17225 17420 17755 18532 21730 21775 23165 23956 26650 27470 28249 29380 29945 30284 34450 35510 35711 36725 37855 43460 43550 46163 46330 53300 54325 54940 56498 59890 60229 68675 68900 71020 71422 73450 75710 77857 87100 88775 92326 92660 98423 108650 112996 115825 119780 120458 137350 141245 142844 145591 146900 149725 151420 155714 177550 178555 184652 189275 196846 217300 230815 231650 240916 245549 274700 282490 291182 299450 301145 310411 311428 355100 357110 378550 389285 393692 401263 461630 463300 491098 492115 564980 582364 598900 602290 620822 706225 714220 727955 757100 778570 802526 892775 923260 982196 984230 1154075 1204580 1227745 1241644 1412450 1455910 1505725 1552055 1557140 1605052 1785550 1892683 1946425 1968460 2006315 2308150 2455490 2460575 2824900 2911820 3011450 3104110 3192137 3571100 3639775 3785366 3892850 4012630 4035343 4616300 4910980 4921150 5216419 6022900 6138725 6208220 6384274 7279550 7570732 7760275 7785700 8025260 8070686 9463415 9842300 10031575 10432838 12277450 12768548 14559100 15520550 15960685 16141372 16451783 18926830 20063150 20176715 20865676 24554900 26082095 31041100 31921370 32903566 37853660 40126300 40353430 47317075 52164190 63842740 65807132 79803425 80706860 82258915 94634150 100883575 104328380 130410475 159606850 164517830 189268300 201767150 213873179 260820950 319213700 329035660 403534300 411294575 427746358 521641900 822589150 855492716 1069365895 1645178300 2138731790 4277463580 5346829475 10693658950 21387317900
- Sum of all divisors σ(n): 53412706368
- Sum of proper divisors (its aliquot sum) s(n): 32025388468
- 21387317900 is an abundant number, because the sum of its proper divisors (32025388468) is greater than itself. Its abundance is 10638070568
Bases of 21387317900
- Binary: 100111110101100100010010010100011002
- Hexadecimal: 0x4FAC8928C
- Base-36: 9TPGG3W
Squares and roots of 21387317900
- 21387317900 squared (213873179002) is 457417366955660410000
- 21387317900 cubed (213873179003) is 9782930640061664393114339000000
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The
square root of 21387317900 is 146244.0354339281 -
The
cube root of 21387317900 is 2775.7825523421
Scales and comparisons
How big is 21387317900?- 21,387,317,900 seconds is equal to 680 years, 2 weeks, 4 days, 9 hours, 38 minutes, 20 seconds.
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To count from 1 to 21,387,317,900 would take you about one thousand, three hundred sixty 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 21387317900 cubic inches would be around 231.3 feet tall.
Recreational maths with 21387317900
- 21387317900 backwards is 00971378312
- 21387317900 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21387317900's digits is 41
- More coming soon!
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The information we have on file for 21387317900 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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