21555728053440

Names of 21555728053440

• Cardinal: 21555728053440 can be written as Twenty-one trillion, five hundred fifty-five billion, seven hundred twenty-eight million, fifty-three thousand, four hundred forty.

Scientific notation

• Scientific notation: 2.155572805344 × 10¹³

Factors of 21555728053440

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 2155

Divisors of 21555728053440

• Number of divisors d(n): 1344
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 29 30 31 32 35 40 42 48 56 58 60 61 62 64 70 80 84 87 93 96 105 112 116 120 122 124 140 145 155 160 168 174 183 186 192 203 210 217 224 232 240 244 248 280 290 305 310 320 336 348 366 372 406 420 427 434 435 448 464 465 480 488 496 560 580 609 610 620 651 672 696 732 744 812 840 841 854 868 870 899 915 928 930 960 976 992 1015 1085 1120 1160 1218 1220 1240 1281 1302 1344 1392 1464 1488 1624 1680 1682 1708 1736 1740 1769 1798 1830 1856 1860 1891 1952 1984 2017 2030 2135 2170 2240 2320 2436 2440 2480 2523 2562 2604 2697 2784 2928 2976 3045 3248 3255 3360 3364 3416 3472 3480 3538 3596 3660 3720 3782 3904 4034 4060 4205 4270 4340 4495 4640 4872 4880 4960 5046 5124 5208 5307 5394 5568 5673 5856 5887 5952 6051 6090 6293 6405 6496 6510 6720 6728 6832 6944 6960 7076 7192 7320 7440 7564 8068 8120 8410 8540 8680 8845 8990 9280 9455 9744 9760 9920 10085 10092 10248 10416 10614 10788 11346 11712 11774 12102 12180 12383 12586 12615 12810 12992 13020 13237 13456 13485 13664 13888 13920 14119 14152 14384 14640 14880 15128 16136 16240 16820 17080 17360 17661 17690 17980 18879 18910 19488 19520 20170 20184 20496 20832 21228 21576 22692 23548 24204 24360 24766 25172 25230 25620 26040 26071 26474 26535 26912 26970 27328 27840 28238 28304 28365 28768 29280 29435 29760 30255 30256 31465 32272 32480 33640 34160 34720 35322 35380 35960 37149 37758 37820 38976 39711 40340 40368 40992 41664 42357 42456 43152 45384 47096 48408 48720 49532 50344 50460 51240 51301 52080 52142 52948 53070 53824 53940 54839 56476 56608 56730 57536 58493 58560 58870 60510 60512 61915 62527 62930 64544 64960 66185 67280 68320 69440 70595 70644 70760 71920 74298 75516 75640 78213 79422 80680 80736 81984 84714 84912 86304 88305 90768 94192 94395 96816 97440 99064 100688 100920 102480 102602 104160 104284 105896 106140 107880 109678 112952 113216 113460 116986 117740 121020 121024 123037 123830 125054 125860 129088 130355 132370 134560 136640 141190 141288 141520 143840 148596 151032 151280 153903 156426 158844 161360 161472 164517 169428 169824 172608 175479 176610 181536 182497 185745 187581 188384 188790 193632 194880 198128 198555 201376 201840 204960 205204 208320 208568 211785 211792 212280 215760 219356 225904 226920 233972 235480 242040 246074 247660 250108 251720 256505 260710 264740 269120 274195 282380 282576 283040 287680 292465 297192 302064 302560 307806 312635 312852 317688 322720 329034 338856 339648 350958 353220 359107 363072 364994 369111 371490 375162 376768 377580 383873 387264 391065 396256 397110 402752 403680 409451 409920 410408 417136 423570 423584 424560 431520 437689 438712 451808 453840 467944 470960 484080 492148 495320 500216 503440 513010 521420 529480 547491 548390 564760 565152 566080 584930 594384 604128 605120 615185 615612 625270 625704 635376 645440 658068 677712 701916 706440 718214 729988 738222 742980 750324 755160 767746 769515 782130 792512 794220 807360 818902 820816 822585 834272 847140 847168 849120 861259 863040 875378 877395 877424 903616 907680 912485 935888 937905 941920 968160 984296 990640 1000432 1006880 1026020 1042840 1058960 1077321 1094982 1096780 1129520 1130304 1151619 1169860 1188768 1208256 1228353 1230370 1231224 1250540 1251408 1270752 1313067 1316136 1355424 1403832 1412880 1436428 1459976 1476444 1485960 1500648 1510320 1535492 1539030 1564260 1588440 1590331 1637804 1641632 1645170 1668544 1694280 1696297 1698240 1722518 1750756 1754790 1754848 1795535 1813283 1815360 1824970 1845555 1871776 1875810 1883840 1919365 1936320 1968592 1981280 2000864 2013760 2047255 2052040 2085680 2117920 2154642 2188445 2189964 2193560 2259040 2303238 2339720 2377536 2456706 2460740 2462448 2501080 2502816 2541504 2583777 2626134 2632272 2710848 2737455 2807664 2825760 2872856 2919952 2952888 2971920 3001296 3020640 3070984 3078060 3128520 3176880 3180662 3275608 3283264 3290340 3388560 3392594 3445036 3501512 3509580 3509696 3568073 3591070 3626566 3649940 3691110 3743552 3751620 3814147 3838730 3937184 3962560 4001728 4094510 4104080 4171360 4235840 4306295 4309284 4376890 4379928 4387120 4518080 4606476 4679440 4770993 4913412 4921480 4924896 5002160 5005632 5088891 5167554 5252268 5264544 5386605 5439849 5474910 5615328 5651520 5745712 5758095 5839904 5905776 5943840 6002592 6041280 6141765 6141968 6156120 6257040 6353760 6361324 6551216 6565335 6580680 6777120 6785188 6890072 7003024 7019160 7136146 7182140 7253132 7299880 7382220 7503240 7628294 7677460 7874368 7951655 8189020 8208160 8342720 8481485 8612590 8618568 8753780 8759856 8774240 9066415 9212952 9358880 9541986 9826824 9842960 9849792 10004320 10177782 10335108 10504536 10529088 10704219 10773210 10879698 10949820 11132317 11230656 11442441 11491424 11516190 11679808 11811552 11874079 11887680 12005184 12283530 12283936 12312240 12514080 12692981 12707520 12722648 12918885 13102432 13130670 13161360 13554240 13570376 13780144 14006048 14038320 14272292 14364280 14506264 14599760 14764440 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222646340 228356672 228848820 237481580 244105408 249765110 253859620 254452960 262926035 266990290 267175608 271407520 275602880 284977896 285445840 290125280 299718132 304631544 305131760 305343552 310422351 315511242 320388348 325689024 331830789 333969510 342535008 344742720 348150336 356222370 356234144 366158112 368096449 368518080 374647665 379970528 380789430 381679440 393072960 399624176 400485435 406175392 407111280 413404320 413896468 420181440 420681656 427184464 428168760 435187920 442441052 445292680 457697640 474963160 499530220 507719240 508905920 517370585 525852070 533980580 534351216 542815040 553051315 569955792 570891680 580250560 599436264 609263088 610263520 620844702 631022484 640776696 663661578 667939020 685070016 712444740 712468288 724318819 732316224 736192898 749295330 759941056 761578860 763358880 774271841 788778105 799248352 800970870 812350784 814222560 826808640 827792936 841363312 854368928 856337520 870375840 884882104 890585360 915395280 949926320 999060440 1015438480 1034741170 1051704140 1067961160 1068702432 1104289347 1106102630 1139911584 1141783360 1198872528 1218526176 1220527040 1241689404 1262044968 1281553392 1327323156 1335878040 1424889480 1448637638 1472385796 1498590660 1523157720 1526717760 1548543682 1552111755 1577556210 1598496704 1601941740 1628445120 1655585872 1659153945 1682726624 1708737856 1712675040 1740751680 1769764208 1781170720 1830790560 1840482245 1899852640 1998120880 2030876960 2069482340 2103408280 2135922320 2137404864 2172956457 2208578694 2212205260 2279823168 2322815523 2397745056 2437052352 2483378808 2524089936 2563106784 2654646312 2671756080 2849778960 2897275276 2944771592 2997181320 3046315440 3097087364 3104223510 3155112420 3203883480 3207697627 3311171744 3318307890 3365453248 3425350080 3539528416 3562341440 3621594095 3661581120 3680964490 3799705280 3871359205 3996241760 4061753920 4138964680 4206816560 4271844640 4345912914 4417157388 4424410520 4645631046 4795490112 4966757616 5048179872 5126213568 5309292624 5343512160 5521446735 5699557920 5794550552 5889543184 5994362640 6092630880 6194174728 6208447020 6310224840 6407766960 6415395254 6622343488 6636615780 7079056832 7243188190 7361928980 7742718410 7992483520 8277929360 8413633120 8543689280 8691825828 8834314776 8848821040 9291262092 9623092881 9933515232 10096359744 10618585248 10687024320 10864782285 11042893470 11399115840 11589101104 11614077615 11779086368 11988725280 12185261760 12388349456 12416894040 12620449680 12815533920 12830790508 13273231560 14486376380 14723857960 15485436820 16038488135 16555858720 16827266240 17383651656 17668629552 17697642080 18582524184 19246185762 19867030464 21237170496 21729564570 22085786940 22453883389 23178202208 23228155230 23558172736 23977450560 24776698912 24833788080 25240899360 25631067840 25661581016 26546463120 28972752760 29447715920 30970873640 32076976270 33111717440 34767303312 35337259104 35395284160 37165048368 38492371524 43459129140 44171573880 44907766778 46356404416 46456310460 48115464405 49553397824 49667576160 50481798720 51323162032 53092926240 57945505520 58895431840 61941747280 64153952540 67361650167 69534606624 70674518208 74330096736 76984743048 86918258280 88343147760 89815533556 92912620920 96230928810 99335152320 102646324064 106185852480 112269416945 115891011040 117790863680 123883494560 128307905080 134723300334 139069213248 148660193472 153969486096 173836516560 176686295520 179631067112 185825241840 192461857620 205292648128 224538833890 231782022080 247766989120 256615810160 269446600668 307938972192 336808250835 347673033120 353372591040 359262134224 371650483680 384923715240 449077667780 513231620320 538893201336 615877944384 673616501670 695346066240 718524268448 743300967360 769847430480 898155335560 1026463240640 1077786402672 1347233003340 1437048536896 1539694860960 1796310671120 2155572805344 2694466006680 3079389721920 3592621342240 4311145610688 5388932013360 7185242684480 10777864026720 21555728053440
• Sum of all divisors σ(n): 85032693178368
• Sum of proper divisors (its aliquot sum) s(n): 63476965124928
• 21555728053440 is an abundant number, because the sum of its proper divisors (63476965124928) is greater than itself. Its abundance is 41921237071488

Bases of 21555728053440

• Binary: 100111001101011010101100000110111010011000000₂
• Hexadecimal: 0x139AD58374C0
• Base-36: 7N2KBXI2O

Squares and roots of 21555728053440

• 21555728053440 squared (21555728053440²) is 464649411913860211495833600
• 21555728053440 cubed (21555728053440³) is 10015856363405994721703351917198147584000
• The square root of 21555728053440 is 4642814.6692970633
• The cube root of 21555728053440 is 27830.4929343627

Scales and comparisons

• 21,555,728,053,440 seconds is equal to 685,405 years, 24 weeks, 5 days, 5 hours, 4 minutes.
• To count from 1 to 21,555,728,053,440 would take you about one million, seven hundred thirteen thousand, five hundred thirteen 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 21555728053440 cubic inches would be around 2319.2 feet tall.

Recreational maths with 21555728053440

• 21555728053440 backwards is 04435082755512
• The number of decimal digits it has is: 14
• The sum of 21555728053440's digits is 51
• More coming soon!