21009572943840

Names of 21009572943840

• Cardinal: 21009572943840 can be written as Twenty-one trillion, nine billion, five hundred seventy-two million, nine hundred forty-three thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.100957294384 × 10¹³

Factors of 21009572943840

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 9152

Divisors of 21009572943840

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 30 32 36 39 40 45 48 52 60 65 72 78 80 90 96 104 117 120 130 144 156 160 180 181 195 208 234 240 260 288 312 360 362 390 416 468 480 520 543 585 624 720 724 757 780 905 936 1040 1086 1170 1248 1440 1448 1514 1560 1629 1810 1872 2080 2172 2271 2340 2353 2715 2896 3028 3120 3258 3620 3744 3785 4344 4542 4680 4706 5430 5792 6056 6240 6516 6813 7059 7240 7570 8145 8191 8688 9084 9360 9412 9841 10860 11355 11765 12112 13032 13626 14118 14480 15140 16290 16382 17376 18168 18720 18824 19682 21177 21720 22710 23530 24224 24573 26064 27252 28236 28960 29523 30280 32580 32764 34065 35295 36336 37648 39364 40955 42354 43440 45420 47060 49146 49205 52128 54504 56472 59046 60560 65160 65528 68130 70590 72672 73719 75296 78728 81910 84708 86880 88569 90840 94120 98292 98410 105885 106483 109008 112944 118092 121120 122865 130320 131056 136260 137017 141180 147438 147615 157456 163820 169416 177138 181680 188240 196584 196820 211770 212966 218016 225888 236184 245730 260640 262112 272520 274034 282360 294876 295230 314912 319449 327640 338832 354276 363360 368595 376480 393168 393640 411051 423540 425932 442845 472368 491460 532415 545040 548068 564720 589752 590460 638898 655280 677664 685085 708552 737190 786336 787280 822102 847080 851864 885690 944736 958347 982920 1064830 1090080 1096136 1129440 1179504 1180920 1233153 1277796 1310560 1370170 1417104 1474380 1482571 1574560 1597245 1644204 1694160 1703728 1771380 1781221 1916694 1965840 2055255 2129660 2192272 2359008 2361840 2466306 2555592 2740340 2834208 2948760 2965142 3194490 3288408 3388320 3407456 3542760 3562442 3833388 3931680 4110510 4259320 4384544 4447713 4723680 4791735 4932612 5111184 5343663 5480680 5897520 5930284 6165765 6200587 6388980 6576816 7085520 7124884 7412855 7666776 8221020 8518640 8895426 8906105 9583470 9865224 10222368 10687326 10961360 11795040 11860568 12331530 12401174 12777960 13153632 13343139 14171040 14249768 14825710 15333552 16030989 16442040 17037280 17790852 17812210 18601761 19166940 19273423 19730448 21374652 21922720 22238565 23721136 24663060 24802348 25555920 26686278 26718315 28499536 29651420 30667104 31002935 32061978 32884080 35581704 35624420 37203522 38333880 38546846 39460896 42749304 44477130 47442272 49326120 49604696 51111840 53372556 53436630 55805283 56999072 57820269 59302840 62005870 64123956 65768160 66715695 71163408 71248840 74407044 76667760 77093692 80154945 80607631 85498608 88954260 93008805 96367115 98652240 99209392 106745112 106873260 111610566 115640538 118605680 124011740 128247912 133431390 142326816 142497680 148814088 153335520 154187384 160309890 161215262 170997216 173460807 177908520 186017610 192734230 197304480 198418784 213490224 213746520 223221132 231281076 237211360 241822893 248023480 256495824 266862780 279026415 284995360 289101345 297628176 308374768 320619780 322430524 346921614 355817040 372035220 385468460 403038155 426980448 427493040 446442264 462562152 483645786 496046960 512991648 533725560 558052830 578202690 595256352 616749536 641239560 644861048 693843228 711634080 725468679 744070440 770936920 806076310 854986080 867304035 892884528 925124304 967291572 992093920 1067451120 1116105660 1122306247 1156405380 1209114465 1282479120 1289722096 1387686456 1450937358 1488140880 1541873840 1612152620 1734608070 1785769056 1850248608 1934583144 2134902240 2232211320 2244612494 2312810760 2418228930 2564958240 2579444192 2775372912 2901874716 2976281760 3083747680 3224305240 3366918741 3469216140 3627343395 3869166288 4464422640 4489224988 4625621520 4836457860 5550745824 5611531235 5803749432 6448610480 6733837482 6938432280 7254686790 7738332576 8928845280 8978449976 9251243040 9672915720 10100756223 11223062470 11607498864 12897220960 13467674964 13876864560 14509373580 14589981211 16834593705 17956899952 19345831440 20201512446 22446124940 23214997728 26935349928 27753729120 29018747160 29179962422 33669187410 35913799904 38691662880 40403024892 43769943633 44892249880 50503781115 53870699856 58037494320 58359924844 67338374820 72949906055 80806049784 87539887266 89784499760 101007562230 107741399712 116074988640 116719849688 131309830899 134676749640 145899812110 161612099568 175079774532 179568999520 202015124460 218849718165 233439699376 262619661798 269353499280 291799624220 323224199136 350159549064 404030248920 437699436330 466879398752 525239323596 538706998560 583599248440 656549154495 700319098128 808060497840 875398872660 1050478647192 1167198496880 1313098308990 1400638196256 1616120995680 1750797745320 2100957294384 2334396993760 2626196617980 3501595490640 4201914588768 5252393235960 7003190981280 10504786471920 21009572943840
• Sum of all divisors σ(n): 77748805435392
• Sum of proper divisors (its aliquot sum) s(n): 56739232491552
• 21009572943840 is an abundant number, because the sum of its proper divisors (56739232491552) is greater than itself. Its abundance is 35729659547712

Bases of 21009572943840

• Binary: 100110001101110101100001000011101011111100000₂
• Hexadecimal: 0x131BAC21D7E0
• Base-36: 7G3NXA2G0

Squares and roots of 21009572943840

• 21009572943840 squared (21009572943840²) is 441402155282533763793945600
• 21009572943840 cubed (21009572943840³) is 9273670778976583694726560866560815104000
• The square root of 21009572943840 is 4583620.0697527277
• The cube root of 21009572943840 is 27593.4333533383

Scales and comparisons

• 21,009,572,943,840 seconds is equal to 668,039 years, 22 weeks, 3 days, 12 hours, 24 minutes.
• To count from 1 to 21,009,572,943,840 would take you about one million, six hundred seventy thousand and ninety-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 21009572943840 cubic inches would be around 2299.5 feet tall.

Recreational maths with 21009572943840

• 21009572943840 backwards is 04834927590012
• The number of decimal digits it has is: 14
• The sum of 21009572943840's digits is 54
• More coming soon!