21015453155737271

Names of 21015453155737271

• Cardinal: 21015453155737271 can be written as Twenty-one quadrillion, fifteen trillion, four hundred fifty-three billion, one hundred fifty-five million, seven hundred thirty-seven thousand, two hundred seventy-one.

Scientific notation

• Scientific notation: 2.1015453155737271 × 10¹⁶

Factors of 21015453155737271

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 169

Divisors of 21015453155737271

• Number of divisors d(n): 384
• Complete list of divisors:
  1 7 11 19 29 49 77 103 121 133 203 209 319 343 539 551 721 841 847 931 1133 1421 1463 1957 2233 2299 2987 3509 3773 3857 5047 5887 5929 6061 6517 7931 9251 9947 10241 10609 12463 13699 15631 15979 16093 20909 21527 24389 24563 26999 32857 35329 41209 41503 42427 55517 56753 64757 66671 71687 74263 86623 87241 95893 101761 109417 111853 112651 116699 146363 150689 170723 171941 175769 188993 201571 229999 236797 268279 288463 296989 307661 361427 388619 397271 453299 463391 466697 519841 606361 610687 624283 671251 712327 782971 788557 816893 952853 1024541 1054823 1092727 1195061 1203587 1230383 1283689 1410997 1609993 1645837 1657579 1877953 1933459 2078923 2153627 2217281 2512067 2529989 2780897 2951069 3173093 3243737 3266879 3384271 3638887 4244527 4274809 4369981 4986289 5097301 5480797 5718251 5845559 6669971 6867113 7383761 7649089 8365427 8612681 8922169 8985823 9876979 10481383 11269951 11520859 11603053 12019997 13145671 13534213 15075389 15520967 17584469 17709923 18104207 19466279 20657483 20761813 22706159 22868153 23689897 24390091 27632737 29711689 30589867 31689083 34904023 35681107 37226981 40027757 40918913 46689797 47729273 48069791 53543623 56070311 60288767 62455183 62900761 64301149 69138853 73369681 80646013 81221371 84139979 92019697 94739491 98143859 105527723 108646769 123091283 123969461 126729449 132219967 144602381 145332691 158943113 165829279 169521211 170730637 193429159 199146277 214129069 221823581 228379943 249767749 258742901 260588867 286432391 303960107 326828579 334104911 336488537 348579913 374805361 392492177 437186281 440305327 450108043 513587767 525022003 564522091 588979853 602092577 663176437 687007013 707312639 760527383 861638981 887106143 918983407 925539769 1012216667 1017328837 1079582449 1160804953 1186648477 1195114459 1354004113 1394023939 1552765067 1598659601 1748374243 1811200307 1824122069 1864733321 2005026737 2127720749 2338734377 2355419759 2440059391 2512179373 2747445239 2846171911 3060303967 3150756301 3595114369 3675154021 3834379043 4122858971 4214648039 4809049091 4916115119 4951188473 5775242033 6209743001 6432883849 6478778383 6623018347 7121301859 7557077143 8306539339 8365801213 9478028791 9758167573 10108817477 10869355469 11190617207 12678402149 12768854483 13053133247 14894045243 16371140639 17080415737 17460684733 17585255611 19232116673 19923203377 20512066531 22055294107 25726078147 26650518803 26840653301 29502536273 31307891021 33663343637 34412805833 34658319311 40426694231 45030186943 45351448681 46361128429 52899540001 54077266309 58145775373 68307173011 70761722339 72853201817 78334320449 88748815043 91371932729 104258316701 111196992247 119562910159 122224793131 123096789277 139462423639 143584465717 180082547029 186553631621 187884573107 192067532063 206517753911 219155237147 240889640831 242608235177 282986859617 293155706833 315211308601 324527899003 370296780007 378540864163 495332056373 506359857257 509972412719 594849929399 639603529103 778378945729 855573551917 861677524939 976236965473 1005091260019 1305875421347 1315192011749 1344472724441 1534086660029 1686227485817 1980908017319 2052089947831 2112742852693 2271695293021 2649786049141 3224712775163 3467324394611 3544519000799 3569806889033 4163949505793 5448652620103 5569958429827 5989014863419 7035638820133 9141127949429 9411309071087 10738606620203 14364629634817 14789199968851 18548502343987 22572989426141 24811633005593 24988648223231 29147646540551 38140568340721 38989709008789 61269542728097 65879163497609 100552407443719 103524399781957 158010925982987 173681431039151 204033525783857 272927963061523 428886799096679 724670798473699 1106076481880909 1910495741430661 3002207593676753 21015453155737271
• Sum of all divisors σ(n): 29656759641600000
• Sum of proper divisors (its aliquot sum) s(n): 8641306485862729
• 21015453155737271 is a deficient number, because the sum of its proper divisors (8641306485862729) is less than itself. Its deficiency is 12374146669874542

Bases of 21015453155737271

• Binary: 1001010101010010111000101111100001001000011111010110111₂
• Hexadecimal: 0x4AA9717C243EB7
• Base-36: 5QXCTWE06GN

Squares and roots of 21015453155737271

• 21015453155737271 squared (21015453155737271²) is 441649271340987622351623578527441
• 21015453155737271 cubed (21015453155737271³) is 9281459573132024608896217538055704084890859953511
• The square root of 21015453155737271 is 144967076.1094989839
• The cube root of 21015453155737271 is 275960.0741962085

Scales and comparisons

• 21,015,453,155,737,271 seconds is equal to 668,226,405 years, 14 weeks, 6 days, 17 hours, 41 minutes, 11 seconds.
• To count from 1 to 21,015,453,155,737,271 would take you about two billion, four million, six hundred seventy-nine thousand, two hundred fifteen 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 21015453155737271 cubic inches would be around 22996.7 feet tall.

Recreational maths with 21015453155737271

• 21015453155737271 backwards is 17273755135451012
• The number of decimal digits it has is: 17
• The sum of 21015453155737271's digits is 59
• More coming soon!