21138627510

Names of 21138627510

• Cardinal: 21138627510 can be written as Twenty-one billion, one hundred thirty-eight million, six hundred twenty-seven thousand, five hundred ten.

Scientific notation

• Scientific notation: 2.113862751 × 10¹⁰

Factors of 21138627510

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 101

Divisors of 21138627510

• Number of divisors d(n): 960
• Complete list of divisors:
  1 2 3 5 6 7 9 10 11 13 14 15 18 21 22 26 27 29 30 31 33 35 39 42 45 54 55 58 62 63 65 66 70 77 78 81 87 90 91 93 99 105 110 117 126 130 135 143 145 154 155 162 165 174 182 186 189 195 198 203 210 217 231 234 261 270 273 279 286 290 297 310 315 319 330 341 351 377 378 385 390 403 405 406 429 434 435 455 462 465 495 522 546 558 567 585 594 609 630 638 651 682 693 702 715 754 770 783 806 810 819 837 841 858 870 891 899 910 930 945 957 990 1001 1015 1023 1053 1085 1131 1134 1155 1170 1209 1218 1287 1302 1305 1365 1386 1395 1430 1485 1566 1595 1638 1674 1682 1705 1755 1782 1798 1827 1885 1890 1914 1953 2002 2015 2030 2046 2079 2106 2145 2170 2233 2262 2310 2349 2387 2418 2457 2511 2523 2574 2610 2639 2697 2730 2790 2821 2835 2871 2970 3003 3045 3069 3190 3255 3393 3410 3465 3510 3627 3654 3770 3861 3906 3915 4030 4095 4147 4158 4185 4205 4290 4433 4455 4466 4495 4698 4774 4785 4914 5005 5022 5046 5115 5265 5278 5394 5481 5642 5655 5670 5742 5859 5887 6006 6045 6090 6138 6237 6293 6435 6510 6699 6786 6930 7161 7254 7371 7569 7722 7830 7917 8091 8190 8294 8370 8410 8463 8613 8866 8910 8990 9009 9135 9207 9251 9570 9765 9889 10010 10179 10230 10395 10530 10881 10933 10962 11165 11310 11583 11687 11718 11745 11774 11935 12090 12285 12441 12474 12555 12586 12615 12870 13195 13299 13398 13485 14105 14322 14355 14742 15015 15138 15345 15834 16182 16443 16926 16965 17226 17577 17661 18018 18135 18270 18414 18502 18879 19305 19530 19778 20097 20358 20735 20790 21483 21762 21866 22165 22330 22707 23166 23374 23490 23751 23870 24273 24570 24882 25110 25230 25389 25839 26071 26390 26598 26970 27027 27405 27621 27753 28210 28710 29029 29295 29435 29667 30030 30537 30690 31031 31185 31465 32643 32799 32886 33495 33930 35061 35154 35322 35805 36270 36855 37323 37758 37845 38610 39585 39897 40194 40455 41470 42315 42966 43065 44330 45045 45414 46035 46255 47502 48546 49445 50778 50895 51678 52142 52983 54054 54405 54665 54810 55242 55506 56637 57915 58058 58435 58590 58870 59334 60291 61074 62062 62205 62370 62930 64449 64757 65286 65598 66495 66990 68121 69223 70122 71253 71610 72819 73710 74646 75690 76167 76531 78213 79170 79794 80910 81081 81809 82215 83259 84630 86130 87087 87885 88305 89001 90090 92070 92510 93093 94395 98397 98890 100485 101790 105183 105966 107415 108810 109330 111969 113274 113535 115830 116870 118755 119691 120263 120582 121365 124410 126945 128557 128898 129195 129514 130355 132990 135135 136242 138105 138446 138765 142506 145145 145638 148335 152334 152685 153062 155155 156426 158949 162162 163215 163618 163995 164430 166518 169911 174174 175305 175770 176610 178002 180873 182497 186186 186615 188790 193347 194271 196794 199485 200970 207669 210366 213759 214830 223938 227070 228501 229593 234639 237510 239382 240526 242730 245427 249777 253890 257114 258390 260710 261261 264915 267003 270270 276210 277530 279279 283185 286781 290290 295191 296670 301455 305370 310310 315549 317898 322245 323785 326430 327990 335907 338923 339822 340605 346115 350610 356265 359073 360789 361746 364095 364994 373230 380835 382655 385671 386694 388542 391065 398970 405405 409045 415338 416295 427518 435435 445005 457002 459186 465465 469278 476847 490854 491985 499554 509733 522522 525915 529830 534006 547491 558558 559845 566370 573562 582813 590382 598455 601315 602910 623007 631098 642785 644490 647570 671814 677846 681210 688779 692230 703917 712530 718146 721578 728190 736281 749331 761670 765310 771342 782130 783783 794745 801009 810810 818090 832590 837837 841841 849555 860343 870870 885573 890010 899899 904365 912485 930930 946647 953694 966735 971355 983970 1016769 1019466 1038345 1051830 1068795 1082367 1094982 1119690 1142505 1147965 1157013 1165626 1173195 1196910 1202630 1227135 1246014 1248885 1285570 1306305 1335015 1377558 1396395 1407834 1433905 1472562 1475955 1498662 1567566 1577745 1589490 1602018 1642473 1675674 1679535 1683682 1694615 1699110 1720686 1748439 1771146 1795365 1799798 1803945 1808730 1824970 1869021 1893294 1928355 1933470 1942710 2007467 2033538 2066337 2076690 2111751 2137590 2164734 2208843 2285010 2295930 2314026 2346390 2351349 2372461 2384235 2454270 2497770 2513511 2525523 2548665 2581029 2612610 2670030 2699697 2737455 2792790 2867810 2914065 2951910 3050307 3115035 3155490 3247101 3284946 3359070 3389230 3443895 3471039 3496878 3519585 3590730 3607890 3681405 3728153 3738042 3746655 3856710 3918915 4005045 4014934 4132674 4189185 4209205 4223502 4301715 4417686 4427865 4499495 4702698 4733235 4744922 4768470 4927419 5027022 5051046 5083845 5097330 5162058 5245317 5399394 5411835 5474910 5607063 5785065 5828130 6022401 6100614 6199011 6230070 6494202 6626529 6887790 6942078 7039170 7117383 7362810 7456306 7493310 7576569 7743087 7837830 8010090 8099091 8212365 8378370 8418410 8603430 8742195 8855730 8998990 9150921 9345105 9466470 9741303 9854838 10037335 10167690 10331685 10413117 10490634 10558755 10823670 11044215 11184459 11214126 11570130 11756745 11862305 12044802 12398022 12567555 12627615 12905145 13253058 13498485 14234766 14782257 15153138 15251535 15486174 16198182 16235505 16424730 17355195 17484390 18067203 18301842 18640765 18690210 19482606 20074670 20663370 20826234 21117510 21352149 22088430 22368918 22729707 23229261 23513490 23724610 24297273 24637095 25135110 25255230 25810290 26097071 26226585 26996970 27452763 28035315 29564514 30112005 30503070 30995055 32471010 33132645 33553377 34710390 35586915 36134406 37281530 37882845 38715435 40495455 42704298 45459414 45754605 46458522 48594546 48706515 49274190 52065585 52194142 52453170 54201609 54905526 55922295 56070630 60224010 61990110 64056447 66265290 67106754 68189121 71173830 72891819 73911285 75765690 77430870 78291213 80990910 90336015 91509210 97413030 100660131 104131170 106760745 108403218 111844590 113648535 116146305 121486365 128112894 130485355 136378242 137263815 145783638 147822570 156582426 162604827 167766885 180672030 192169341 201320262 213521490 227297070 232292610 234873639 242972730 260970710 271008045 274527630 301980393 320282235 325209654 335533770 340945605 364459095 384338682 391456065 469747278 503300655 542016090 603960786 640564470 681891210 704620917 728918190 782912130 813024135 960846705 1006601310 1174368195 1409241834 1509901965 1626048270 1921693410 2113862751 2348736390 3019803930 3523104585 4227725502 7046209170 10569313755 21138627510
• Sum of all divisors σ(n): 81587810304
• Sum of proper divisors (its aliquot sum) s(n): 60449182794
• 21138627510 is an abundant number, because the sum of its proper divisors (60449182794) is greater than itself. Its abundance is 39310555284

Bases of 21138627510

• Binary: 10011101011111101011101101110110110₂
• Hexadecimal: 0x4EBF5DBB6
• Base-36: 9PLE5DI

Squares and roots of 21138627510

• 21138627510 squared (21138627510²) is 446841573006528800100
• 21138627510 cubed (21138627510³) is 9445617567767483103401150751000
• The square root of 21138627510 is 145391.2910390441
• The cube root of 21138627510 is 2764.9817045813

Scales and comparisons

• 21,138,627,510 seconds is equal to 672 years, 7 weeks, 3 days, 58 minutes, 30 seconds.
• To count from 1 to 21,138,627,510 would take you about one thousand, three hundred forty-four 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 21138627510 cubic inches would be around 230.4 feet tall.

Recreational maths with 21138627510

• 21138627510 backwards is 01572683112
• The number of decimal digits it has is: 11
• The sum of 21138627510's digits is 36
• More coming soon!