21491909010
21,491,909,010 is an even composite number composed of seven prime numbers multiplied together.
21491909010 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of three hundred eighty-four divisors.
Prime factorization of 21491909010:
2 × 35 × 5 × 11 × 13 × 127 × 487
(2 × 3 × 3 × 3 × 3 × 3 × 5 × 11 × 13 × 127 × 487)See below for interesting mathematical facts about the number 21491909010 from the Numbermatics database.
Names of 21491909010
- Cardinal: 21491909010 can be written as Twenty-one billion, four hundred ninety-one million, nine hundred nine thousand and ten.
Scientific notation
- Scientific notation: 2.149190901 × 1010
Factors of 21491909010
Divisors of 21491909010
- Number of divisors d(n): 384
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Complete list of divisors:
1 2 3 5 6 9 10 11 13 15 18 22 26 27 30 33 39 45 54 55 65 66 78 81 90 99 110 117 127 130 135 143 162 165 195 198 234 243 254 270 286 297 330 351 381 390 405 429 486 487 495 585 594 635 702 715 762 810 858 891 974 990 1053 1143 1170 1215 1270 1287 1397 1430 1461 1485 1651 1755 1782 1905 2106 2145 2286 2430 2435 2574 2673 2794 2922 2970 3159 3302 3429 3510 3810 3861 4191 4290 4383 4455 4870 4953 5265 5346 5357 5715 6318 6331 6435 6858 6985 7305 7722 8255 8382 8766 8910 9906 10287 10530 10714 11430 11583 12573 12662 12870 13149 13365 13970 14610 14859 15795 16071 16510 17145 18161 18993 19305 20574 20955 21915 23166 24765 25146 26298 26730 26785 29718 30861 31590 31655 32142 34290 34749 36322 37719 37986 38610 39447 41910 43830 44577 48213 49530 51435 53570 54483 56979 57915 61722 61849 62865 63310 65745 69498 69641 74295 75438 78894 80355 89154 90805 94965 96426 102870 108966 113157 113958 115830 118341 123698 125730 131490 133731 139282 144639 148590 154305 160710 163449 170937 173745 181610 185547 188595 189930 197235 208923 222885 226314 236682 241065 267462 272415 284895 289278 308610 309245 326898 339471 341874 347490 348205 371094 377190 394470 401193 417846 433917 445770 482130 490347 512811 544830 556641 565785 569790 591705 618490 626769 668655 678942 680339 696410 723195 802386 804037 817245 854685 867834 927735 980694 1025622 1044615 1113282 1131570 1183410 1253538 1301751 1337310 1360678 1446390 1471041 1538433 1608074 1634490 1669923 1697355 1709370 1855470 1880307 2005965 2041017 2089230 2169585 2412111 2451735 2564055 2603502 2783205 2942082 3076866 3133845 3339846 3394710 3401695 3760614 4011930 4020185 4082034 4339170 4413123 4824222 4903470 5009769 5128110 5566410 5640921 6123051 6267690 6508755 6803390 7236333 7355205 7692165 8040370 8349615 8826246 8844407 9401535 10019538 10205085 11281842 12060555 12246102 13017510 14472666 14710410 15029307 15384330 16699230 16922763 17688814 18369153 18803070 20410170 21708999 22065615 24121110 25048845 26533221 28204605 30058614 30615255 33845526 36181665 36738306 43417998 44131230 44222035 50097690 53066442 55107459 56409210 61230510 65126997 72363330 75146535 79599663 84613815 88444070 91845765 108544995 110214918 130253994 132666105 150293070 159199326 165322377 169227630 183691530 195380991 217089990 238798989 265332210 275537295 325634985 330644754 390761982 397998315 477597978 551074590 651269970 716396967 795996630 826611885 976904955 1193994945 1432793934 1653223770 1953809910 2149190901 2387989890 3581984835 4298381802 7163969670 10745954505 21491909010
- Sum of all divisors σ(n): 68756373504
- Sum of proper divisors (its aliquot sum) s(n): 47264464494
- 21491909010 is an abundant number, because the sum of its proper divisors (47264464494) is greater than itself. Its abundance is 25772555484
Bases of 21491909010
- Binary: 101000000010000010010000001100100102
- Hexadecimal: 0x501048192
- Base-36: 9VFQ74I
Squares and roots of 21491909010
- 21491909010 squared (214919090102) is 461902152894119180100
- 21491909010 cubed (214919090103) is 9927159041523517582805002701000
-
The
square root of 21491909010 is 146601.1903430529 -
The
cube root of 21491909010 is 2780.3000301581
Scales and comparisons
How big is 21491909010?- 21,491,909,010 seconds is equal to 683 years, 19 weeks, 3 days, 22 hours, 43 minutes, 30 seconds.
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To count from 1 to 21,491,909,010 would take you about one thousand, three hundred sixty-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 21491909010 cubic inches would be around 231.7 feet tall.
Recreational maths with 21491909010
- 21491909010 backwards is 01090919412
- The number of decimal digits it has is: 11
- The sum of 21491909010's digits is 36
- More coming soon!
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The information we have on file for 21491909010 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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