21017955489664

Names of 21017955489664

• Cardinal: 21017955489664 can be written as Twenty-one trillion, seventeen billion, nine hundred fifty-five million, four hundred eighty-nine thousand, six hundred sixty-four.

Scientific notation

• Scientific notation: 2.1017955489664 × 10¹³

Factors of 21017955489664

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 2591

Divisors of 21017955489664

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 4 7 8 14 16 28 32 37 49 56 64 74 98 103 112 128 148 196 206 224 259 296 392 412 439 448 518 592 721 784 824 878 896 1036 1184 1442 1568 1648 1756 1813 2003 2072 2368 2884 3073 3136 3296 3512 3626 3811 4006 4144 4736 5047 5768 6146 6272 6592 7024 7252 7622 8012 8288 10094 11536 12292 13184 14021 14048 14504 15244 16024 16243 16576 20188 21511 23072 24584 26677 28042 28096 29008 30488 32048 32486 33152 40376 43022 45217 46144 49168 53354 56084 56192 58016 60976 64096 64972 74111 80752 86044 90434 92288 98147 98336 106708 112168 113701 116032 121952 128192 129944 148222 161504 172088 180868 186739 196294 196672 206309 213416 224336 227402 232064 243904 256384 259888 296444 316519 323008 344176 361736 373478 392588 393344 412618 426832 448672 454804 487808 518777 519776 592888 633038 646016 688352 723472 746956 785176 795907 825236 853664 879317 897344 909608 1037554 1039552 1185776 1266076 1376704 1444163 1446944 1493912 1570352 1591814 1650472 1673029 1707328 1758634 1794688 1819216 2075108 2079104 2215633 2371552 2532152 2753408 2888326 2893888 2987824 3140704 3183628 3300944 3346058 3414656 3517268 3631439 3638432 4150216 4431266 4743104 5064304 5776652 5787776 5975648 6155219 6281408 6367256 6601888 6692116 7034536 7262878 7276864 7633433 8300432 8862532 9486208 10109141 10128608 11553304 11711203 11951296 12310438 12562816 12734512 13203776 13384232 14069072 14525756 14553728 15266866 16600864 17725064 20218282 20257216 23106608 23422406 23902592 24620876 25469024 26407552 26768464 28138144 29051512 30533732 32534729 33201728 35450128 40436564 40514432 43086533 46213216 46844812 49241752 50938048 53434031 53536928 56276288 58103024 61067464 65069458 66403456 70900256 80873128 81978421 86173066 90569651 92426432 93689624 98483504 101876096 106868062 107073856 112552576 116206048 122134928 130138916 141800512 161746256 163956842 172346132 181139302 184852864 187379248 196967008 213736124 214147712 227743103 232412096 244269856 260277832 283601024 323492512 327913684 344692264 362278604 374038217 374758496 393934016 427472248 455486206 464824192 488539712 520555664 633987557 646985024 655827368 689384528 724557208 748076434 749516992 787868032 854944496 910972412 977079424 1041111328 1267975114 1293970048 1311654736 1378769056 1449114416 1496152868 1499033984 1594201721 1709888992 1821944824 2082222656 2535950228 2623309472 2757538112 2898228832 2992305736 3188403442 3351077087 3419777984 3643889648 4164445312 4437912899 5071900456 5246618944 5515076224 5796457664 5984611472 6376806884 6702154174 6839555968 7287779296 8875825798 10143800912 10493237888 11592915328 11969222944 12753613768 13404308348 14575558592 17751651596 20287601824 23457539609 23938445888 25507227536 26808616696 29151117184 35503303192 40575203648 46915079218 47876891776 51014455072 53617233392 71006606384 81150407296 93830158436 102028910144 107234466784 142013212768 164202777263 187660316872 204057820288 214468933568 284026425536 328405554526 375320633744 428937867136 568052851072 656811109052 750641267488 1313622218104 1501282534976 2627244436208 3002565069952 5254488872416 10508977744832 21017955489664
• Sum of all divisors σ(n): 50650340083200
• Sum of proper divisors (its aliquot sum) s(n): 29632384593536
• 21017955489664 is an abundant number, because the sum of its proper divisors (29632384593536) is greater than itself. Its abundance is 8614429103872

Bases of 21017955489664

• Binary: 100110001110110011111110001010101011110000000₂
• Hexadecimal: 0x131D9FC55780
• Base-36: 7G7IK1474

Squares and roots of 21017955489664

• 21017955489664 squared (21017955489664²) is 441754452965497074010832896
• 21017955489664 cubed (21017955489664³) is 9284775429789686511088514569088159186944
• The square root of 21017955489664 is 4584534.3809010747
• The cube root of 21017955489664 is 27597.1026721553

Scales and comparisons

• 21,017,955,489,664 seconds is equal to 668,305 years, 50 weeks, 3 days, 17 hours, 21 minutes, 4 seconds.
• To count from 1 to 21,017,955,489,664 would take you about one million, six hundred seventy thousand, seven hundred sixty-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 21017955489664 cubic inches would be around 2299.8 feet tall.

Recreational maths with 21017955489664

• 21017955489664 backwards is 46698455971012
• The number of decimal digits it has is: 14
• The sum of 21017955489664's digits is 67
• More coming soon!