20981387197440

Names of 20981387197440

• Cardinal: 20981387197440 can be written as Twenty trillion, nine hundred eighty-one billion, three hundred eighty-seven million, one hundred ninety-seven thousand, four hundred forty.

Scientific notation

• Scientific notation: 2.098138719744 × 10¹³

Factors of 20981387197440

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 808

Divisors of 20981387197440

• Number of divisors d(n): 704
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 59 60 64 72 80 90 96 108 118 120 128 135 144 160 177 180 192 216 236 240 256 270 288 295 320 354 360 384 432 472 480 512 531 540 576 590 640 708 720 739 768 864 885 944 960 1024 1062 1080 1152 1180 1280 1416 1440 1478 1536 1593 1728 1770 1888 1920 2124 2160 2217 2304 2360 2560 2655 2832 2880 2956 3072 3186 3456 3481 3540 3695 3776 3840 4248 4320 4434 4608 4720 5120 5310 5664 5760 5912 6372 6651 6912 6962 7080 7390 7552 7680 7965 8496 8640 8868 9216 9440 10443 10620 11085 11328 11520 11824 12744 13302 13824 13924 14160 14780 15104 15360 15930 16992 17280 17405 17736 18880 19953 20886 21240 22170 22656 23040 23648 25488 26604 27648 27848 28320 29560 30208 31329 31860 33255 33984 34560 34810 35472 37760 39906 41772 42480 43601 44340 45312 46080 47296 50976 52215 53208 55696 56640 59120 60416 62658 63720 66510 67968 69120 69620 70944 75520 79812 83544 84960 87202 88680 90624 93987 94592 99765 101952 104430 106416 111392 113280 118240 125316 127440 130803 133020 135936 138240 139240 141888 151040 156645 159624 167088 169920 174404 177360 181248 187974 189184 199530 203904 205379 208860 212832 218005 222784 226560 236480 250632 254880 261606 266040 271872 278480 283776 302080 313290 319248 334176 339840 348808 354720 375948 378368 392409 399060 407808 410758 417720 425664 436010 445568 453120 469935 472960 501264 509760 523212 532080 543744 556960 567552 616137 626580 638496 654015 668352 679680 697616 709440 751896 756736 784818 798120 815616 821516 835440 851328 872020 891136 906240 939870 945920 1002528 1019520 1026895 1046424 1064160 1113920 1135104 1177227 1232274 1253160 1276992 1308030 1336704 1359360 1395232 1418880 1503792 1569636 1596240 1631232 1643032 1670880 1702656 1744040 1782272 1848411 1879740 1891840 1962045 2005056 2039040 2053790 2092848 2128320 2227840 2270208 2354454 2464548 2506320 2553984 2572459 2616060 2673408 2718720 2790464 2837760 3007584 3080685 3139272 3192480 3286064 3341760 3405312 3488080 3564544 3696822 3759480 3783680 3924090 4010112 4078080 4107580 4185696 4256640 4455680 4708908 4929096 5012640 5107968 5144918 5232120 5346816 5545233 5580928 5675520 5886135 6015168 6161370 6278544 6384960 6572128 6683520 6810624 6976160 7393644 7518960 7717377 7848180 8020224 8156160 8215160 8371392 8513280 8911360 9242055 9417816 9858192 10025280 10215936 10289836 10464240 10693632 11090466 11161856 11351040 11772270 12030336 12322740 12557088 12769920 12862295 13144256 13367040 13952320 14787288 15037920 15434754 15696360 16040448 16430320 16742784 17026560 17822720 18484110 18835632 19716384 20050560 20431872 20579672 20928480 22180932 22323712 23152131 23544540 24060672 24645480 25114176 25539840 25724590 26288512 26734080 27726165 27904640 29574576 30075840 30869508 31392720 32080896 32860640 33485568 34053120 36968220 37671264 38586885 39432768 40101120 41159344 41856960 44361864 44647424 46304262 47089080 48121344 49290960 50228352 51079680 51449180 52577024 53468160 55452330 55809280 59149152 60151680 61739016 62785440 65721280 66971136 69456393 73936440 75342528 77173770 78865536 80202240 82318688 83713920 88723728 92608524 94178160 96242688 98581920 100456704 102159360 102898360 105154048 110904660 111618560 115760655 118298304 120303360 123478032 125570880 131442560 133942272 138912786 147872880 150685056 151775081 154347540 157731072 160404480 164637376 167427840 177447456 185217048 188356320 197163840 200913408 205796720 210308096 221809320 223237120 231521310 236596608 240606720 246956064 251141760 262885120 277825572 295745760 301370112 303550162 308695080 315462144 329274752 334855680 347281965 354894912 370434096 376712640 394327680 401826816 411593440 443618640 455325243 463042620 473193216 481213440 493912128 502283520 525770240 555651144 591491520 602740224 607100324 617390160 630924288 658549504 669711360 694563930 709789824 740868192 753425280 758875405 788655360 823186880 887237280 910650486 926085240 946386432 987824256 1004567040 1051540480 1111302288 1182983040 1205480448 1214200648 1234780320 1317099008 1365975729 1389127860 1419579648 1481736384 1506850560 1517750810 1577310720 1646373760 1774474560 1821300972 1852170480 1892772864 1975648512 2009134080 2222604576 2276626215 2365966080 2428401296 2469560640 2634198016 2731951458 2778255720 2839159296 2963472768 3013701120 3035501620 3154621440 3292747520 3548949120 3642601944 3704340960 3951297024 4097927187 4445209152 4553252430 4731932160 4856802592 4939121280 5463902916 5556511440 5678318592 5926945536 6027402240 6071003240 6585495040 6829878645 7097898240 7285203888 7408681920 7902594048 8195854374 8890418304 9106504860 9463864320 9713605184 9878242560 10927805832 11113022880 11853891072 12142006480 13170990080 13659757290 14195796480 14570407776 14817363840 16391708748 17780836608 18213009720 19427210368 19756485120 20489635935 21855611664 22226045760 23707782144 24284012960 27319514580 28391592960 29140815552 29634727680 32783417496 35561673216 36426019440 38854420736 39512970240 40979271870 43711223328 44452091520 48568025920 54639029160 58281631104 59269455360 65566834992 71123346432 72852038880 77708841472 81958543740 87422446656 88904183040 97136051840 109278058320 116563262208 118538910720 131133669984 145704077760 155417682944 163917087480 174844893312 177808366080 194272103680 218556116640 233126524416 262267339968 291408155520 327834174960 349689786624 355616732160 388544207360 437112233280 466253048832 524534679936 582816311040 655668349920 699379573248 777088414720 874224466560 1049069359872 1165632622080 1311336699840 1398759146496 1748448933120 2098138719744 2331265244160 2622673399680 3496897866240 4196277439488 5245346799360 6993795732480 10490693598720 20981387197440
• Sum of all divisors σ(n): 75952281024000
• Sum of proper divisors (its aliquot sum) s(n): 54970893826560
• 20981387197440 is an abundant number, because the sum of its proper divisors (54970893826560) is greater than itself. Its abundance is 33989506629120

Bases of 20981387197440

• Binary: 100110001010100011100001000010111110000000000₂
• Hexadecimal: 0x13151C217C00
• Base-36: 7FQPS7PC0

Squares and roots of 20981387197440

• 20981387197440 squared (20981387197440²) is 440218608728899137542553600
• 20981387197440 cubed (20981387197440³) is 9236397081259372996180391766244982784000
• The square root of 20981387197440 is 4580544.4215114867
• The cube root of 20981387197440 is 27581.0883527403

Scales and comparisons

• 20,981,387,197,440 seconds is equal to 667,143 years, 11 weeks, 14 hours, 24 minutes.
• To count from 1 to 20,981,387,197,440 would take you about one million, six hundred sixty-seven thousand, eight hundred fifty-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 20981387197440 cubic inches would be around 2298.4 feet tall.

Recreational maths with 20981387197440

• 20981387197440 backwards is 04479178318902
• The number of decimal digits it has is: 14
• The sum of 20981387197440's digits is 63
• More coming soon!