21210851970

Names of 21210851970

• Cardinal: 21210851970 can be written as Twenty-one billion, two hundred ten million, eight hundred fifty-one thousand, nine hundred seventy.

Scientific notation

• Scientific notation: 2.121085197 × 10¹⁰

Factors of 21210851970

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 2604

Divisors of 21210851970

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 5 6 7 9 10 11 14 15 18 19 21 22 27 30 33 35 38 42 45 49 54 55 57 63 66 70 77 81 90 95 98 99 105 110 114 126 133 135 147 154 162 165 171 189 190 198 209 210 231 245 266 270 285 294 297 315 330 342 378 385 399 405 418 441 462 490 495 513 539 567 570 594 627 630 665 693 735 770 798 810 855 882 891 931 945 990 1026 1045 1078 1134 1155 1197 1254 1323 1330 1386 1463 1470 1485 1539 1617 1710 1782 1862 1881 1890 1995 2079 2090 2205 2310 2394 2557 2565 2646 2695 2793 2835 2926 2970 3078 3135 3234 3465 3591 3762 3969 3990 4158 4389 4410 4455 4655 4851 5114 5130 5390 5586 5643 5670 5985 6237 6270 6615 6930 7182 7315 7671 7695 7938 8085 8379 8778 8910 9310 9405 9702 10241 10395 10773 11286 11970 12474 12785 13167 13230 13965 14553 14630 15342 15390 16170 16758 16929 17899 17955 18810 19845 20482 20790 21546 21945 23013 24255 25137 25570 26334 27930 28127 28215 29106 30723 31185 33858 35798 35910 38355 39501 39690 41895 43659 43890 46026 48510 48583 50274 51205 53697 53865 56254 56430 61446 62370 65835 69039 72765 75411 76710 79002 83790 84381 84645 87318 89495 92169 97166 102410 107394 107730 115065 118503 125293 125685 131670 138078 140635 145530 145749 150822 153615 161091 168762 169290 178990 184338 196889 197505 207117 218295 230130 237006 242915 250586 251370 253143 268485 276507 281270 291498 307230 322182 340081 345195 375879 377055 393778 395010 414234 421905 436590 437247 460845 483273 485830 506286 534413 536970 553014 590667 592515 626465 680162 690390 728745 751758 754110 759429 805455 829521 843810 874494 921690 966546 984445 1020243 1035585 1068826 1127637 1181334 1185030 1252930 1265715 1311741 1378223 1382535 1449819 1457490 1518858 1603239 1610910 1659042 1700405 1772001 1879395 1968890 2040486 2071170 2186235 2255274 2278287 2380567 2416365 2531430 2623482 2672065 2756446 2765070 2899638 2953335 3060729 3206478 3382911 3400810 3544002 3740891 3758790 3797145 3935223 4134669 4147605 4372470 4556574 4761134 4809717 4832730 5101215 5316003 5344130 5638185 5906670 6121458 6558705 6765822 6891115 7141701 7249095 7481782 7594290 7870446 8016195 8269338 8295210 8860005 9182187 9619434 10148733 10202430 10632006 11222673 11276370 11391435 11902835 12404007 13117410 13782230 14283402 14429151 14498190 15303645 15948009 16032390 16914555 17720010 18364374 18704455 19676115 20297466 20673345 21425103 22445346 22782870 23805670 24048585 24808014 26186237 26580015 27546561 28858302 30607290 31896018 33668019 33829110 35708505 37212021 37408910 39352230 41346690 42850206 43287453 45910935 48097170 50743665 52372474 53160030 55093122 56113365 62020035 64275309 67336038 71417010 72145755 74424042 78558711 79740045 86574906 91821870 101004057 101487330 107125515 111636063 112226730 124040070 128550618 130931185 137732805 144291510 157117422 159480090 168340095 186060105 192825927 202008114 214251030 216437265 223272126 235676133 261862370 275465610 303012171 321376545 336680190 372120210 385651854 392793555 432874530 471352266 505020285 558180315 606024342 642753090 707028399 785587110 964129635 1010040570 1116360630 1178380665 1414056798 1515060855 1928259270 2121085197 2356761330 3030121710 3535141995 4242170394 7070283990 10605425985 21210851970
• Sum of all divisors σ(n): 76215712320
• Sum of proper divisors (its aliquot sum) s(n): 55004860350
• 21210851970 is an abundant number, because the sum of its proper divisors (55004860350) is greater than itself. Its abundance is 33794008380

Bases of 21210851970

• Binary: 10011110000010000111110101010000010₂
• Hexadecimal: 0x4F043EA82
• Base-36: 9QSE64I

Squares and roots of 21210851970

• 21210851970 squared (21210851970²) is 449900241293252880900
• 21210851970 cubed (21210851970³) is 9542767419338468216545940373000
• The square root of 21210851970 is 145639.4588358525
• The cube root of 21210851970 is 2768.1271674433

Scales and comparisons

• 21,210,851,970 seconds is equal to 674 years, 22 weeks, 5 days, 23 hours, 19 minutes, 30 seconds.
• To count from 1 to 21,210,851,970 would take you about one thousand, three hundred forty-eight 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 21210851970 cubic inches would be around 230.7 feet tall.

Recreational maths with 21210851970

• 21210851970 backwards is 07915801212
• The number of decimal digits it has is: 11
• The sum of 21210851970's digits is 36
• More coming soon!