21801383237920

Names of 21801383237920

• Cardinal: 21801383237920 can be written as Twenty-one trillion, eight hundred one billion, three hundred eighty-three million, two hundred thirty-seven thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.180138323792 × 10¹³

Factors of 21801383237920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 4819

Divisors of 21801383237920

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 4 5 8 10 11 13 16 20 22 26 32 40 44 52 55 65 80 88 104 110 130 143 160 169 176 208 220 260 286 338 352 416 440 520 572 676 715 845 880 1040 1144 1352 1430 1690 1760 1859 2080 2089 2197 2288 2699 2704 2860 3380 3718 4178 4394 4576 5398 5408 5720 6760 7436 8356 8788 9295 10445 10796 10985 11440 13495 13520 14872 16712 17576 18590 20890 21592 21970 22880 22979 24167 26990 27040 27157 29689 29744 33424 35087 35152 37180 41780 43184 43940 45958 48334 53980 54314 59378 59488 66848 70174 70304 74360 83560 86368 87880 91916 96668 107960 108628 114895 118756 120835 135785 140348 148445 148720 167120 175435 175760 183832 193336 215920 217256 229790 237512 241670 271570 280696 296890 297440 298727 334240 350870 351520 353041 367664 385957 386672 431840 434512 456131 459580 475024 483340 543140 561392 593780 597454 701740 706082 735328 771914 773344 869024 912262 919160 950048 966680 1086280 1122784 1187560 1194908 1403480 1412164 1493635 1543828 1765205 1824524 1838320 1929785 1933360 2172560 2280655 2375120 2389816 2806960 2824328 2987270 3087656 3530410 3649048 3676640 3859570 3866720 3883451 4345120 4561310 4589533 4750240 4779632 5017441 5613920 5638211 5648656 5929703 5974540 6175312 7060820 7298096 7719140 7766902 9122620 9179066 9559264 10034882 11276422 11297312 11859406 11949080 12350624 14121640 14596192 15438280 15533804 18245240 18358132 19417255 20069764 22552844 22947665 23718812 23898160 25087205 28191055 28243280 29648515 30876560 31067608 36490480 36716264 38834510 40139528 45105688 45895330 47437624 47796320 50174410 50484863 56382110 56486560 59297030 61753120 62020321 62135216 65226733 72980960 73296743 73432528 77669020 80279056 90211376 91790660 94875248 100348820 100969726 112764220 118594060 124040642 124270432 130453466 146593486 146865056 155338040 160558112 180422752 183581320 189750496 200697640 201939452 225528440 237188120 248081284 252424315 260906932 293186972 310101605 310676080 326133665 366483715 367162640 401395280 403878904 451056880 474376240 496162568 504848630 521813864 586373944 620203210 621352160 652267330 732967430 734325280 802790560 806264173 807757808 902113760 948752480 952857659 992325136 1009697260 1043627728 1172747888 1240406420 1304534660 1465934860 1612528346 1615515616 1905715318 1984650272 2019394520 2087255456 2345495776 2480812840 2609069320 2931869720 3225056692 3811430636 4031320865 4038789040 4764288295 4961625680 5218138640 5863739440 6450113384 7622861272 8062641730 8077578080 9528576590 9923251360 10436277280 10481434249 11727478880 12387149567 12900226768 15245722544 16125283460 19057153180 20962868498 24774299134 25800453536 30491445088 32250566920 38114306360 41925736996 49548598268 52407171245 61935747835 64501133840 76228612720 83851473992 99097196536 104814342490 123871495670 129002267680 136258645237 152457225440 167702947984 198194393072 209628684980 247742991340 272517290474 335405895968 396388786144 419257369960 495485982680 545034580948 681293226185 838514739920 990971965360 1090069161896 1362586452370 1677029479840 1981943930720 2180138323792 2725172904740 4360276647584 5450345809480 10900691618960 21801383237920
• Sum of all divisors σ(n): 60920022240000
• Sum of proper divisors (its aliquot sum) s(n): 39118639002080
• 21801383237920 is an abundant number, because the sum of its proper divisors (39118639002080) is greater than itself. Its abundance is 17317255764160

Bases of 21801383237920

• Binary: 100111101010000000111101101000001100100100000₂
• Hexadecimal: 0x13D407B41920
• Base-36: 7Q7F0ONJ4

Squares and roots of 21801383237920

• 21801383237920 squared (21801383237920²) is 475300311086659143325926400
• 21801383237920 cubed (21801383237920³) is 10362204235102852187838358656315609088000
• The square root of 21801383237920 is 4669195.1381281977
• The cube root of 21801383237920 is 27935.8152419023

Scales and comparisons

• 21,801,383,237,920 seconds is equal to 693,216 years, 28 weeks, 4 days, 12 hours, 18 minutes, 40 seconds.
• To count from 1 to 21,801,383,237,920 would take you about one million, seven hundred thirty-three thousand and forty-one 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 21801383237920 cubic inches would be around 2328 feet tall.

Recreational maths with 21801383237920

• 21801383237920 backwards is 02973238310812
• The number of decimal digits it has is: 14
• The sum of 21801383237920's digits is 49
• More coming soon!