21023643240
21,023,643,240 is an even composite number composed of six prime numbers multiplied together.
21023643240 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 21023643240:
23 × 32 × 5 × 312 × 67 × 907
(2 × 2 × 2 × 3 × 3 × 5 × 31 × 31 × 67 × 907)See below for interesting mathematical facts about the number 21023643240 from the Numbermatics database.
Names of 21023643240
- Cardinal: 21023643240 can be written as Twenty-one billion, twenty-three million, six hundred forty-three thousand, two hundred forty.
Scientific notation
- Scientific notation: 2.102364324 × 1010
Factors of 21023643240
Divisors of 21023643240
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 31 36 40 45 60 62 67 72 90 93 120 124 134 155 180 186 201 248 268 279 310 335 360 372 402 465 536 558 603 620 670 744 804 907 930 961 1005 1116 1206 1240 1340 1395 1608 1814 1860 1922 2010 2077 2232 2412 2680 2721 2790 2883 3015 3628 3720 3844 4020 4154 4535 4805 4824 5442 5580 5766 6030 6231 7256 7688 8040 8163 8308 8649 9070 9610 10385 10884 11160 11532 12060 12462 13605 14415 16326 16616 17298 18140 18693 19220 20770 21768 23064 24120 24924 27210 28117 28830 31155 32652 34596 36280 37386 38440 40815 41540 43245 49848 54420 56234 57660 60769 62310 64387 65304 69192 74772 81630 83080 84351 86490 93465 108840 112468 115320 121538 124620 128774 140585 149544 163260 168702 172980 182307 186930 193161 224936 243076 249240 253053 257548 281170 303845 321935 326520 337404 345960 364614 373860 386322 421755 486152 506106 515096 546921 562340 579483 607690 643870 674808 729228 747720 772644 843510 871627 911535 965805 1012212 1093842 1124680 1158966 1215380 1265265 1287740 1458456 1545288 1687020 1743254 1823070 1883839 1931610 2024424 2187684 2317932 2430760 2530530 2575480 2614881 2734605 2897415 3374040 3486508 3646140 3767678 3863220 4358135 4375368 4635864 5061060 5229762 5469210 5651517 5794830 6973016 7292280 7535356 7726440 7844643 8716270 9419195 10122120 10459524 10938420 11303034 11589660 13074405 15070712 15689286 16954551 17432540 18838390 20919048 21876840 22606068 23179320 26148810 28257585 31378572 33909102 34865080 37676780 39223215 45212136 52297620 56515170 58399009 62757144 67818204 75353560 78446430 84772755 104595240 113030340 116798018 135636408 156892860 169545510 175197027 226060680 233596036 291995045 313785720 339091020 350394054 467192072 525591081 583990090 678182040 700788108 875985135 1051182162 1167980180 1401576216 1751970270 2102364324 2335960360 2627955405 3503940540 4204728648 5255910810 7007881080 10511821620 21023643240
- Sum of all divisors σ(n): 71734796640
- Sum of proper divisors (its aliquot sum) s(n): 50711153400
- 21023643240 is an abundant number, because the sum of its proper divisors (50711153400) is greater than itself. Its abundance is 29687510160
Bases of 21023643240
- Binary: 100111001010001101101010110011010002
- Hexadecimal: 0x4E51B5668
- Base-36: 9NOXMY0
Squares and roots of 21023643240
- 21023643240 squared (210236432402) is 441993575082797697600
- 21023643240 cubed (210236432403) is 9292315236912892255435804224000
-
The
square root of 21023643240 is 144995.3214417621 -
The
cube root of 21023643240 is 2759.9591833915
Scales and comparisons
How big is 21023643240?- 21,023,643,240 seconds is equal to 668 years, 25 weeks, 2 days, 4 hours, 54 minutes.
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To count from 1 to 21,023,643,240 would take you about one thousand, three hundred thirty-six 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 21023643240 cubic inches would be around 230 feet tall.
Recreational maths with 21023643240
- 21023643240 backwards is 04234632012
- The number of decimal digits it has is: 11
- The sum of 21023643240's digits is 27
- More coming soon!
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