21285396744240

Names of 21285396744240

• Cardinal: 21285396744240 can be written as Twenty-one trillion, two hundred eighty-five billion, three hundred ninety-six million, seven hundred forty-four thousand, two hundred forty.

Scientific notation

• Scientific notation: 2.128539674424 × 10¹³

Factors of 21285396744240

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 8454

Divisors of 21285396744240

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 67 80 120 134 181 201 240 268 335 362 402 536 543 670 724 804 905 1005 1019 1072 1086 1340 1448 1608 1810 2010 2038 2172 2680 2715 2896 3057 3216 3620 4020 4076 4344 5095 5360 5430 6114 7177 7240 8040 8152 8688 10190 10860 12127 12228 14354 14480 15285 16080 16304 20380 21531 21720 24254 24456 28708 30570 35885 36381 40760 43062 43440 48508 48912 57416 60635 61140 68273 71770 72762 81520 86124 97016 107655 114832 121270 122280 136546 143540 145524 172248 181905 184439 194032 204819 215310 242540 244560 273092 287080 291048 341365 344496 363810 368878 409638 430620 480859 485080 546184 553317 574160 582096 682730 727620 737756 819276 861240 922195 961718 970160 1024095 1092368 1106634 1299037 1365460 1442577 1455240 1475512 1638552 1722480 1844390 1923436 2048190 2213268 2404295 2598074 2730920 2766585 2885154 2910480 2951024 3277104 3688780 3846872 3897111 4096380 4426536 4808590 5196148 5461840 5533170 5770308 6495185 7212885 7313363 7377560 7693744 7794222 8192760 8853072 9617180 10392296 11066340 11540616 12357413 12990370 14425770 14626726 14755120 15588444 16385520 19234360 19485555 20784592 21940089 22132680 23081232 24714826 25980740 28851540 29253452 31176888 36566815 37072239 38468720 38971110 43880178 44265360 49429652 51961480 57703080 58506904 61787065 62353776 73133630 74144478 77942220 87035479 87760356 98859304 103922960 109700445 115406160 117013808 123574130 146267260 148288956 155884440 174070958 175520712 185361195 197718608 219400890 247148260 261106437 292534520 296577912 311768880 348141916 351041424 370722390 435177395 438801780 489995321 494296520 522212874 585069040 593155824 696283832 741444780 870354790 877603560 979990642 988593040 1044425748 1305532185 1323718703 1392567664 1469985963 1482889560 1740709580 1755207120 1959981284 2088851496 2449976605 2611064370 2647437406 2939971926 2965779120 3481419160 3919962568 3971156109 4177702992 4899953210 5222128740 5294874812 5879943852 6618593515 6962838320 7349929815 7839925136 7942312218 9799906420 10444257480 10589749624 11759887704 13237187030 14699859630 15884624436 19599812840 19855780545 20888514960 21179499248 23519775408 26474374060 29399719260 31769248872 39199625680 39711561090 52948748120 58799438520 63538497744 79423122180 88689153101 105897496240 117598877040 158846244360 177378306202 266067459303 317692488720 354756612404 443445765505 532134918606 709513224808 886891531010 1064269837212 1330337296515 1419026449616 1773783062020 2128539674424 2660674593030 3547566124040 4257079348848 5321349186060 7095132248080 10642698372120 21285396744240
• Sum of all divisors σ(n): 67415050160640
• Sum of proper divisors (its aliquot sum) s(n): 46129653416400
• 21285396744240 is an abundant number, because the sum of its proper divisors (46129653416400) is greater than itself. Its abundance is 24844256672160

Bases of 21285396744240

• Binary: 100110101101111100100100000110000100000110000₂
• Hexadecimal: 0x135BE4830830
• Base-36: 7JMDJNCXC

Squares and roots of 21285396744240

• 21285396744240 squared (21285396744240²) is 453068114559702791973177600
• 21285396744240 cubed (21285396744240³) is 9643734570568053149367912492447297024000
• The square root of 21285396744240 is 4613609.9471281705
• The cube root of 21285396744240 is 27713.6620360719

Scales and comparisons

• 21,285,396,744,240 seconds is equal to 676,809 years, 40 weeks, 2 days, 14 hours, 44 minutes.
• To count from 1 to 21,285,396,744,240 would take you about one million, six hundred ninety-two thousand and twenty-four 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 21285396744240 cubic inches would be around 2309.5 feet tall.

Recreational maths with 21285396744240

• 21285396744240 backwards is 04244769358212
• The number of decimal digits it has is: 14
• The sum of 21285396744240's digits is 57
• More coming soon!