21015206087120

Names of 21015206087120

• Cardinal: 21015206087120 can be written as Twenty-one trillion, fifteen billion, two hundred six million, eighty-seven thousand, one hundred twenty.

Scientific notation

• Scientific notation: 2.101520608712 × 10¹³

Factors of 21015206087120

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 163

Divisors of 21015206087120

• Number of divisors d(n): 810
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 17 20 28 34 35 40 49 56 59 68 70 73 80 85 98 112 118 119 136 140 146 170 196 236 238 245 272 280 289 292 295 340 365 392 413 472 476 490 511 560 578 584 590 595 680 730 784 826 833 944 952 980 1003 1022 1156 1168 1180 1190 1241 1360 1445 1460 1652 1666 1904 1960 2006 2023 2044 2065 2312 2360 2380 2482 2555 2890 2891 2920 3304 3332 3481 3577 3920 4012 4046 4088 4130 4165 4307 4624 4720 4760 4964 5015 5110 5329 5780 5782 5840 6205 6608 6664 6962 7021 7154 8024 8092 8176 8260 8330 8614 8687 9520 9928 10030 10115 10220 10658 11560 11564 12410 13328 13924 14042 14161 14308 14455 16048 16184 16520 16660 17051 17228 17374 17405 17885 19856 20060 20230 20440 21097 21316 21535 23120 23128 24367 24820 26645 27848 28084 28322 28616 28910 30149 32368 33040 33320 34102 34456 34748 34810 35105 35770 37303 40120 40460 40880 42194 42632 43070 43435 46256 48734 49147 49640 53290 55696 56168 56644 57232 57820 59177 60298 60809 66640 68204 68912 69496 69620 70210 70805 71540 73219 74606 80240 80920 84388 85255 85264 86140 86870 90593 97468 98294 99280 105485 106580 112336 113288 115640 118354 119357 120596 121618 121835 136408 138992 139240 140420 141610 143080 146438 147679 149212 150745 161840 168776 170510 170569 172280 173740 181186 186515 194936 196588 210970 211043 213160 226576 231280 236708 238714 241192 243236 243670 245735 254113 261121 272816 278480 280840 283220 286160 292876 295358 295885 298424 301490 304045 314411 337552 341020 341138 344560 347480 362372 366095 373030 389872 393176 414239 421940 422086 426320 452965 473416 477428 482384 486472 487340 491470 508226 512533 522242 561680 566440 585752 590716 591770 596785 596848 602980 608090 628822 634151 682040 682276 694960 724744 732190 738395 746060 786352 828478 835499 843880 844172 852845 905930 946832 954856 972944 974680 982940 1006009 1016452 1025066 1033753 1044484 1055215 1132880 1171504 1181432 1183540 1193570 1205960 1216180 1244723 1257644 1268302 1270565 1305605 1364080 1364552 1449488 1464380 1476790 1492120 1540081 1572055 1656956 1670998 1687760 1688344 1705690 1778791 1811860 1909712 1949360 1965880 2012018 2032904 2050132 2067506 2071195 2088968 2110430 2200877 2362864 2367080 2387140 2411920 2432360 2489446 2515288 2536604 2541130 2562665 2611210 2729104 2899673 2928760 2953580 2984240 3080162 3144110 3170755 3313912 3341996 3376688 3411380 3557582 3587731 3623720 3931760 4024036 4065808 4100264 4135012 4142390 4177495 4177936 4220860 4319921 4401754 4439057 4734160 4774280 4864720 4978892 5030045 5030576 5073208 5082260 5125330 5168765 5222420 5344987 5799346 5857520 5907160 6160324 6223615 6288220 6341510 6627824 6683992 6822760 7042063 7115164 7175462 7247440 7700405 8048072 8200528 8270024 8284780 8354990 8441720 8639842 8713061 8803508 8878114 8893955 9548560 9957784 10060090 10146416 10164520 10250660 10337530 10444840 10689974 10780567 11004385 11598692 11814320 12320648 12447230 12451537 12576440 12683020 13367984 13645520 14084126 14230328 14350924 14498365 15400810 15406139 16096144 16540048 16569560 16709980 16883440 17279684 17426122 17607016 17756228 17787910 17938655 18550249 19915568 20120180 20329040 20501320 20675060 20889680 21379948 21561134 21599605 22008770 22195285 23197384 24641296 24894460 24903074 25152880 25366040 26724935 28168252 28460656 28701848 28996730 30239447 30801620 30812278 33139120 33419960 34559368 34852244 35210315 35214032 35512456 35575820 35877310 37100498 37414909 40240360 41002640 41350120 42759896 43122268 43199210 43565305 44017540 44390570 46394768 49294441 49788920 49806148 50732080 53449870 53902835 56336504 57403696 57993460 60478894 60991427 61603240 61624556 62257685 66839920 69118736 69704488 70420630 71024912 71151640 71754620 73438657 74200996 74829818 75463969 77030695 80480720 82700240 85519792 86244536 86398420 87130610 88035080 88781140 90864779 92751245 98588882 99577840 99612296 106899740 107805670 112673008 115986920 120957788 121982854 123206480 123249112 124515370 129851743 139408976 140841260 142303280 143509240 146877314 148401992 149659636 150927938 151197235 154061390 172489072 172796840 174261220 176070160 177562280 181729558 185502490 187074545 197177764 199224592 211676129 213799480 215611340 231973840 241915576 243965708 246472205 246498224 249030740 259703486 261904363 281682520 287018480 293754628 296803984 299319272 301855876 302394470 304957135 308122780 315354233 345593680 348522440 355124560 363459116 367193285 371004980 374149090 377319845 394355528 423352258 427598960 431222680 454323895 483831152 487931416 492944410 498061480 514070599 519406972 523808726 563365040 587509256 598638544 603711752 604788940 609914270 616245560 630708466 636053453 649258715 697044880 726918232 734386570 742009960 748298180 754639690 788711056 846704516 862445360 908647790 908962201 975862832 985888820 996122960 1028141198 1038813944 1047617452 1058380645 1175018512 1207423504 1209577880 1219828540 1232491120 1261416932 1272106906 1298517430 1309521815 1453836464 1468773140 1484019920 1496596360 1509279380 1576771165 1693409032 1817295580 1817924402 1971777640 2056282396 2077627888 2095234904 2116761290 2207479631 2419155760 2439657080 2522833864 2544213812 2570352995 2597034860 2619043630 2937546280 2993192720 3018558760 3153542330 3180267265 3386818064 3598494193 3634591160 3635848804 3943555280 4112564792 4190469808 4233522580 4414959262 4452374171 4544811005 4879314160 5045667728 5088427624 5140705990 5194069720 5238087260 5361021961 5875092560 6037117520 6307084660 6360534530 7196988386 7269182320 7271697608 8225129584 8467045160 8829918524 8904748342 9089622010 10176855248 10281411980 10388139440 10476174520 10722043922 11037398155 12614169320 12721069060 14393976772 14543395216 15452357417 16934090320 17659837048 17809496684 17992470965 18179244020 20562823960 20952349040 21444087844 22074796310 22261870855 25228338640 25442138120 26805109805 28787953544 30904714834 35319674096 35618993368 35984941930 36358488040 37527153727 41125647920 42888175688 44149592620 44523741710 50884276240 53610219610 57575907088 61809429668 71237986736 71969883860 72716976080 75054307454 77261787085 85776351376 88299185240 89047483420 107220439220 123618859336 143939767720 150108614908 154523574170 176598370480 178094966840 187635768635 214440878440 247237718672 262690076089 287879535440 300217229816 309047148340 356189933680 375271537270 428881756880 525380152178 600434459632 618094296680 750543074540 1050760304356 1236188593360 1313450380445 1501086149080 2101520608712 2626900760890 3002172298160 4203041217424 5253801521780 10507603043560 21015206087120
• Sum of all divisors σ(n): 62271176308722
• Sum of proper divisors (its aliquot sum) s(n): 41255970221602
• 21015206087120 is an abundant number, because the sum of its proper divisors (41255970221602) is greater than itself. Its abundance is 20240764134482

Bases of 21015206087120

• Binary: 100110001110011111011111001001100100111010000₂
• Hexadecimal: 0x131CFBE4C9D0
• Base-36: 7G6933VM8

Squares and roots of 21015206087120

• 21015206087120 squared (21015206087120²) is 441638886884125501029894400
• 21015206087120 cubed (21015206087120³) is 9281132223956175359341456623970800128000
• The square root of 21015206087120 is 4584234.5148475987
• The cube root of 21015206087120 is 27595.8992748497

Scales and comparisons

• 21,015,206,087,120 seconds is equal to 668,218 years, 28 weeks, 3 days, 22 hours, 25 minutes, 20 seconds.
• To count from 1 to 21,015,206,087,120 would take you about one million, six hundred seventy thousand, five hundred forty-six 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 21015206087120 cubic inches would be around 2299.7 feet tall.

Recreational maths with 21015206087120

• 21015206087120 backwards is 02178060251012
• 21015206087120 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21015206087120's digits is 35
• More coming soon!