21425210730

Names of 21425210730

• Cardinal: 21425210730 can be written as Twenty-one billion, four hundred twenty-five million, two hundred ten thousand, seven hundred thirty.

Scientific notation

• Scientific notation: 2.142521073 × 10¹⁰

Factors of 21425210730

• Number of distinct prime factors ω(n): 9
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 288

Divisors of 21425210730

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 5 6 7 9 10 11 14 15 18 19 21 22 29 30 31 33 35 38 42 45 55 57 58 62 63 66 70 77 87 90 93 95 99 105 110 114 126 133 145 154 155 165 171 174 181 186 190 198 203 209 210 217 231 261 266 279 285 290 310 315 319 330 341 342 362 385 399 406 418 434 435 462 465 495 522 543 551 558 570 589 609 627 630 638 651 665 682 693 770 798 855 870 899 905 930 957 990 1015 1023 1045 1085 1086 1102 1155 1178 1197 1218 1254 1267 1302 1305 1330 1386 1395 1463 1595 1629 1653 1705 1710 1767 1798 1810 1827 1881 1914 1953 1991 1995 2030 2046 2090 2170 2233 2310 2387 2394 2534 2610 2697 2715 2755 2790 2871 2926 2945 3045 3069 3135 3190 3255 3258 3306 3410 3439 3465 3534 3654 3762 3801 3857 3906 3982 3990 4123 4389 4466 4495 4774 4785 4959 5115 5249 5301 5394 5430 5510 5611 5742 5890 5973 5985 6061 6090 6138 6270 6293 6335 6479 6510 6699 6878 6930 7161 7315 7602 7714 8091 8145 8246 8265 8778 8835 8990 9135 9405 9570 9765 9889 9918 9955 10230 10317 10498 10602 11165 11222 11403 11571 11935 11946 11970 12122 12369 12586 12670 12958 13167 13398 13485 13937 14322 14355 14630 15345 15747 16182 16290 16530 16833 17081 17195 17670 17919 18183 18270 18810 18879 19005 19285 19437 19530 19778 19910 20097 20615 20634 21483 21945 22330 22806 23142 23870 24073 24738 24795 26245 26334 26505 26970 27874 28055 28710 29667 29865 30305 30690 30951 31465 31494 32395 33495 33666 34162 34390 34713 35805 35838 36366 36743 37107 37758 37829 38010 38570 38874 39277 40194 40455 41230 41811 42427 42966 43890 45353 47241 48146 49445 49590 50499 51243 51585 52490 53010 54549 56110 56637 57015 57739 57855 58311 59334 59730 60610 61721 61845 61902 62930 64790 65835 66990 69223 69426 69685 71610 72219 73486 74214 75658 78554 78735 80910 83622 84165 84854 85405 89001 89595 90706 90915 94395 94482 97185 98890 99731 100485 100998 102486 103170 106609 107415 109098 110229 113274 113487 114030 115478 115710 116622 117831 119567 120365 123442 123690 125433 127281 131670 136059 138446 139370 144438 148335 153729 154755 157470 162719 168330 170810 173217 173565 178002 179190 181830 183715 185163 185535 187891 188790 189145 194370 196385 199462 200970 207669 209055 212135 213218 214830 216657 220458 226765 226974 235662 236205 239134 240730 250866 252495 254562 256215 264803 272118 272745 283185 288695 291555 296670 299193 307458 308605 309510 319827 325438 330687 340461 346115 346434 347130 353493 358701 361095 367430 370326 371070 375782 378290 381843 392770 404173 408177 415338 418110 424270 432047 433314 445005 453530 472410 488157 498655 504990 512430 519651 529606 533045 545490 551145 555489 563673 566370 567435 577390 583110 589155 597835 598386 617210 623007 627165 636405 639654 661374 680295 680922 692230 698117 706986 717402 722190 746263 763686 768645 794409 808346 813595 816354 864094 866085 890010 897579 925815 939455 959481 976314 997310 1038345 1039302 1066090 1076103 1083285 1097041 1102290 1110978 1127346 1134870 1139033 1172699 1178310 1195670 1212519 1246014 1254330 1272810 1296141 1315237 1324015 1360590 1396234 1464471 1492526 1495965 1537290 1588818 1599135 1627190 1653435 1691019 1702305 1732170 1767465 1789909 1793505 1795158 1851630 1878910 1909215 1918962 2020865 2040885 2076690 2094351 2152206 2160235 2166570 2194082 2238789 2278066 2345398 2383227 2425038 2440785 2592282 2598255 2630474 2648030 2777445 2818365 2928942 2991930 3091661 3115035 3198270 3291123 3306870 3382038 3404610 3417099 3490585 3518097 3534930 3579818 3587010 3637557 3731315 3818430 3888423 3945711 3972045 4041730 4081770 4188702 4320470 4477578 4487895 4766454 4797405 4881570 5196510 5369727 5380515 5485205 5554890 5636730 5695165 5863495 6062595 6183322 6230070 6283053 6480705 6576185 6582246 6716367 6834198 6981170 7036194 7275114 7322355 7462630 7679287 7776846 7891422 7944090 8208893 8455095 8949545 8975790 9274983 9594810 9873369 10251297 10471755 10554291 10739454 10761030 10970410 11193945 11390330 11726990 11837133 11916135 12125190 12529363 12566106 12961410 13152370 13432734 14644710 15358574 15458305 16109181 16417786 16455615 16910190 17085495 17590485 17899090 18187785 18549966 19442115 19728555 19746738 20502594 20943510 21108582 21641627 22387890 23037861 23674266 23832270 24626679 25058726 26848635 27824949 30916610 31415265 32218362 32911230 33581835 34008271 34170990 35180970 36375570 37588089 38396435 38884230 39457110 41044465 43283254 46075722 46374915 49253358 49366845 51256485 52771455 53697270 55649898 59185665 62646815 62830530 64924881 67163670 68016542 69113583 73880037 75176178 76792870 80545905 82088930 92749830 98733690 102024813 102512970 105542910 108208135 112764267 115189305 118371330 123133395 125293630 129849762 138227166 139124745 147760074 161091810 170041355 187940445 194774643 204049626 216416270 225528534 230378610 238057897 246266790 278249490 306074439 324624405 340082710 345567915 369400185 375880890 389549286 476115794 510124065 563821335 612148878 649248810 691135830 714173691 738800370 973873215 1020248130 1127642670 1190289485 1428347382 1530372195 1947746430 2142521073 2380578970 3060744390 3570868455 4285042146 7141736910 10712605365 21425210730
• Sum of all divisors σ(n): 78498201600
• Sum of proper divisors (its aliquot sum) s(n): 57072990870
• 21425210730 is an abundant number, because the sum of its proper divisors (57072990870) is greater than itself. Its abundance is 35647780140

Bases of 21425210730

• Binary: 10011111101000010101100010101101010₂
• Hexadecimal: 0x4FD0AC56A
• Base-36: 9UC0MEI

Squares and roots of 21425210730

• 21425210730 squared (21425210730²) is 459039654824907132900
• 21425210730 cubed (21425210730³) is 9835021338050096575062616017000
• The square root of 21425210730 is 146373.5315212419
• The cube root of 21425210730 is 2777.4209095421

Scales and comparisons

• 21,425,210,730 seconds is equal to 681 years, 13 weeks, 1 day, 23 hours, 25 minutes, 30 seconds.
• To count from 1 to 21,425,210,730 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 21425210730 cubic inches would be around 231.5 feet tall.

Recreational maths with 21425210730

• 21425210730 backwards is 03701252412
• The number of decimal digits it has is: 11
• The sum of 21425210730's digits is 27
• More coming soon!