21366720432225

Names of 21366720432225

• Cardinal: 21366720432225 can be written as Twenty-one trillion, three hundred sixty-six billion, seven hundred twenty million, four hundred thirty-two thousand, two hundred twenty-five.

Scientific notation

• Scientific notation: 2.1366720432225 × 10¹³

Factors of 21366720432225

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 365

Divisors of 21366720432225

• Number of divisors d(n): 405
• Complete list of divisors:
  1 3 5 7 9 15 19 21 25 35 45 49 57 63 75 95 105 133 147 171 175 225 245 285 315 331 343 361 399 441 475 525 665 735 855 931 993 1029 1083 1197 1225 1425 1575 1655 1715 1805 1995 2205 2317 2401 2527 2793 2979 3087 3249 3325 3675 4275 4655 4965 5145 5415 5985 6289 6517 6951 7203 7581 8275 8379 8575 9025 9975 11025 11585 12005 12635 13965 14895 15435 16219 16245 17689 18867 19551 20853 21609 22743 23275 24825 25725 27075 29925 31445 32585 34755 36015 37905 41895 44023 45619 48657 53067 56601 57925 58653 60025 63175 69825 74475 77175 81095 81225 88445 94335 97755 104265 108045 109561 113533 113715 119491 123823 132069 136857 145971 157225 159201 162925 173775 180075 189525 209475 220115 228095 243285 265335 283005 293265 308161 328683 340599 358473 371469 396207 405475 410571 442225 471675 488775 521325 540225 547805 567665 568575 597455 619115 660345 684285 729855 766927 794731 796005 836437 866761 924483 986049 1021797 1075419 1100575 1114407 1140475 1216425 1326675 1415025 1466325 1540805 1643415 1702995 1792365 1857345 1981035 2052855 2081659 2157127 2300781 2384193 2509311 2600283 2739025 2773449 2838325 2987275 3095575 3301725 3421425 3649275 3834635 3973655 3980025 4182185 4333805 4622415 4930245 5108985 5368489 5377095 5572035 5855059 6244977 6471381 6902343 7152579 7527933 7704025 7800849 8217075 8514975 8961825 9286725 9905175 10264275 10408295 10785635 11503905 11920965 12546555 13001415 13867245 14571613 15099889 16105467 17565177 18734931 19173175 19414143 19868275 20910925 21669025 23112075 24651225 25544925 26842445 26885475 27860175 29275295 31224885 32356905 34511715 35762895 37579423 37639665 39004245 39551521 40985413 43714839 45299667 48316401 52041475 52695531 53928175 57519525 59604825 62732775 65007075 69336225 72858065 75499445 80527335 87825885 93674655 97070715 102001291 112738269 118654563 122956239 131144517 134212225 135899001 146376475 156124425 161784525 172558575 178814475 187897115 188198325 195021225 197757605 204927065 218574195 226498335 241582005 263055961 263477655 276860647 286897891 306003873 338214807 355963689 364290325 368868717 377497225 402636675 439129425 468373275 485353575 510006455 563691345 593272815 614781195 655722585 679495005 714009037 789167883 830581941 860693673 918011619 939485575 988788025 1024635325 1092870975 1132491675 1207910025 1315279805 1317388275 1384303235 1434489455 1530019365 1691074035 1779818445 1844343585 1938024529 2142027111 2367503649 2491745823 2550032275 2582081019 2818456725 2966364075 3073905975 3278612925 3397475025 3570045185 3945839415 4152909705 4303468365 4590058095 4998063259 5814073587 6426081333 6576399025 6921516175 7172447275 7650096825 8455370175 8899092225 9221717925 9690122645 10710135555 11837518245 12458729115 12910405095 13566171703 14994189777 17442220761 17850225925 19729197075 20764548525 21517341825 22950290475 24990316295 29070367935 32130406665 40698515109 44982569331 48450613225 53550677775 59187591225 62293645575 64552025475 67830858515 74970948885 87211103805 94963201921 122095545327 124951581475 145351839675 160652033325 203492575545 224912846655 284889605763 339154292575 374854744425 436055519025 474816009605 610477726635 854668817289 1017462877725 1124564233275 1424448028815 2374080048025 3052388633175 4273344086445 7122240144075 21366720432225
• Sum of all divisors σ(n): 47262115818099
• Sum of proper divisors (its aliquot sum) s(n): 25895395385874
• 21366720432225 is an abundant number, because the sum of its proper divisors (25895395385874) is greater than itself. Its abundance is 4528674953649

Bases of 21366720432225

• Binary: 100110110111011010011110010000000100001100001₂
• Hexadecimal: 0x136ED3C80861
• Base-36: 7KNQHO869

Squares and roots of 21366720432225

• 21366720432225 squared (21366720432225²) is 456536742028861290818450625
• 21366720432225 cubed (21366720432225³) is 9754692933969504443180976762204821390625
• 21366720432225 is a perfect square number. Its square root is 4622415
• The cube root of 21366720432225 is 27748.9117587365

Scales and comparisons

• 21,366,720,432,225 seconds is equal to 679,395 years, 32 weeks, 1 day, 3 minutes, 45 seconds.
• To count from 1 to 21,366,720,432,225 would take you about one million, six hundred ninety-eight thousand, four hundred eighty-nine 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 21366720432225 cubic inches would be around 2312.4 feet tall.

Recreational maths with 21366720432225

• 21366720432225 backwards is 52223402766312
• 21366720432225 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21366720432225's digits is 45
• More coming soon!