21908381040

Names of 21908381040

• Cardinal: 21908381040 can be written as Twenty-one billion, nine hundred eight million, three hundred eighty-one thousand and forty.

Scientific notation

• Scientific notation: 2.190838104 × 10¹⁰

Factors of 21908381040

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 784

Divisors of 21908381040

• Number of divisors d(n): 800
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 13 14 15 16 18 20 21 24 26 27 28 30 35 36 39 40 42 45 48 52 53 54 56 60 63 65 70 72 78 80 81 84 90 91 104 105 106 108 112 117 120 126 130 135 140 144 156 159 162 168 180 182 189 195 208 210 212 216 234 240 252 260 265 270 273 280 312 315 318 324 336 351 360 364 371 378 390 405 420 424 432 455 468 477 504 520 530 540 546 560 567 585 624 630 636 648 689 701 702 720 728 742 756 780 795 810 819 840 848 910 936 945 954 1008 1040 1053 1060 1080 1092 1113 1134 1170 1260 1272 1296 1365 1378 1402 1404 1431 1456 1484 1512 1560 1590 1620 1638 1680 1755 1820 1855 1872 1890 1908 2067 2103 2106 2120 2160 2184 2226 2268 2340 2385 2457 2520 2544 2730 2756 2804 2808 2835 2862 2968 3024 3120 3180 3240 3276 3339 3445 3505 3510 3640 3710 3780 3816 4095 4134 4206 4212 4240 4293 4368 4452 4536 4680 4770 4823 4907 4914 5040 5265 5460 5512 5565 5608 5616 5670 5724 5936 6201 6309 6360 6480 6552 6678 6890 7010 7020 7155 7280 7371 7420 7560 7632 8190 8268 8412 8424 8586 8904 9072 9113 9360 9540 9646 9814 9828 10017 10335 10515 10530 10920 11024 11130 11216 11340 11448 12285 12402 12618 12720 13104 13356 13780 14020 14040 14310 14469 14721 14742 14840 15120 16380 16536 16695 16824 16848 17172 17808 18226 18603 18927 19080 19292 19628 19656 20034 20670 21030 21060 21465 21840 22260 22680 22896 24115 24535 24570 24804 25236 26712 27339 27560 28040 28080 28620 28938 29442 29484 29680 30051 31005 31545 32760 33072 33390 33648 34344 36452 36855 37153 37206 37854 38160 38584 39256 39312 40068 41340 42060 42120 42930 43407 44163 44520 45360 45565 48230 49070 49140 49608 50085 50472 53424 54678 55120 55809 56080 56781 57240 57876 58884 58968 60102 62010 63090 63791 65520 66780 68688 72345 72904 73605 73710 74306 74412 75708 77168 78512 80136 82017 82680 84120 84240 85860 86814 88326 89040 91130 93015 94635 96460 98140 98280 99216 100170 100944 109356 111459 111618 113562 114480 115752 117768 117936 120204 124020 126180 127582 130221 132489 133560 136695 144690 145808 147210 147420 148612 148824 150255 151416 160272 164034 165360 168240 171720 173628 176652 182260 185765 186030 189270 191373 192920 196280 196560 200340 217035 218712 220815 222918 223236 227124 231504 235536 240408 246051 248040 252360 255164 260071 260442 264978 267120 273390 279045 283905 289380 294420 294840 297224 297648 300510 302832 318955 328068 334377 343440 347256 353304 364520 371530 372060 378540 382746 385840 390663 392560 397467 400680 410085 434070 437424 441630 445836 446472 454248 480816 482989 492102 496080 504720 510328 520142 520884 529956 546780 557295 558090 567810 574119 578760 588840 589680 594448 601020 637910 651105 656136 662445 668754 694512 706608 729040 738153 743060 744120 757080 765492 780213 781326 794934 801360 820170 868140 883260 891672 892944 908496 956865 965978 984204 1003131 1020656 1040284 1041768 1059912 1093560 1114590 1116180 1135620 1148238 1157520 1177680 1202040 1230255 1275820 1300355 1302210 1312272 1324890 1337508 1448967 1476306 1486120 1488240 1514160 1530984 1560426 1562652 1589868 1640340 1671885 1722357 1736280 1766520 1783344 1913730 1931956 1953315 1968408 1987335 2006262 2080568 2083536 2119824 2187120 2229180 2232360 2271240 2296476 2340639 2404080 2414945 2460510 2551640 2600710 2604420 2649780 2675016 2870595 2897934 2952612 2972240 3009393 3061968 3120852 3125304 3179736 3280680 3343770 3380923 3444714 3472560 3533040 3690765 3827460 3863912 3901065 3906630 3936816 3974670 4012524 4161136 4346901 4458360 4464720 4542480 4592952 4681278 4829890 4921020 5015655 5103280 5167071 5201420 5208840 5299560 5350032 5741190 5795868 5905224 6018786 6241704 6250608 6359472 6561360 6687540 6761846 6889428 7021917 7244835 7381530 7654920 7727824 7802130 7813260 7949340 8025048 8611785 8693802 8916720 9185904 9362556 9659780 9842040 10031310 10142769 10334142 10402840 10417680 10599120 11482380 11591736 11703195 11810448 12037572 12483408 13040703 13375080 13523692 13778856 14043834 14489670 14763060 15046965 15309840 15604260 15626520 15898680 16050096 16904615 17223570 17387604 18725112 19319560 19684080 20062620 20285538 20668284 20805680 21065751 21734505 22964760 23183472 23406390 24075144 25835355 26081406 26750160 27047384 27557712 28087668 28979340 29526120 30093930 30428307 31208520 31253040 31797360 33809230 34447140 34775208 35109585 37450224 38639120 39122109 40125240 40571076 41336568 42131502 43469010 45929520 46812780 48150288 50713845 51670710 52162812 54094768 56175336 57958680 59052240 60187860 60856614 62417040 65203515 67618460 68894280 69550416 70219170 78244218 80250480 81142152 82673136 84263004 86938020 91284921 93625560 101427690 103341420 104325624 105328755 112350672 115917360 120375720 121713228 130407030 135236920 137788560 140438340 152141535 156488436 162284304 168526008 173876040 182569842 187251120 195610545 202855380 206682840 208651248 210657510 240751440 243426456 260814060 270473840 273854763 280876680 304283070 312976872 337052016 347752080 365139684 391221090 405710760 413365680 421315020 456424605 486852912 521628120 547709526 561753360 608566140 625953744 730279368 782442180 811421520 842630040 912849210 1043256240 1095419052 1217132280 1369273815 1460558736 1564884360 1685260080 1825698420 2190838104 2434264560 2738547630 3129768720 3651396840 4381676208 5477095260 7302793680 10954190520 21908381040
• Sum of all divisors σ(n): 95553634176
• Sum of proper divisors (its aliquot sum) s(n): 73645253136
• 21908381040 is an abundant number, because the sum of its proper divisors (73645253136) is greater than itself. Its abundance is 51736872096

Bases of 21908381040

• Binary: 10100011001110101110101110101110000₂
• Hexadecimal: 0x519D75D70
• Base-36: A2BON00

Squares and roots of 21908381040

• 21908381040 squared (21908381040²) is 479977159793831481600
• 21908381040 cubed (21908381040³) is 10515522507260227940440548864000
• The square root of 21908381040 is 148014.8000708039
• The cube root of 21908381040 is 2798.1442226851

Scales and comparisons

• 21,908,381,040 seconds is equal to 696 years, 32 weeks, 1 day, 5 hours, 24 minutes.
• To count from 1 to 21,908,381,040 would take you about one thousand, three hundred ninety-three 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 21908381040 cubic inches would be around 233.2 feet tall.

Recreational maths with 21908381040

• 21908381040 backwards is 04018380912
• 21908381040 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21908381040's digits is 36
• More coming soon!