21221819253018

Names of 21221819253018

• Cardinal: 21221819253018 can be written as Twenty-one trillion, two hundred twenty-one billion, eight hundred nineteen million, two hundred fifty-three thousand and eighteen.

Scientific notation

• Scientific notation: 2.1221819253018 × 10¹³

Factors of 21221819253018

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 168

Divisors of 21221819253018

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 6 9 18 19 37 38 57 74 107 111 114 171 214 222 321 333 342 642 666 703 963 1369 1406 1926 2033 2109 2738 3959 4066 4107 4218 6099 6327 7918 8214 11449 11877 12198 12321 12654 18297 22898 23754 24642 26011 34347 35631 36594 50653 52022 68694 71262 75221 78033 101306 103041 146483 150442 151959 156066 206082 217531 225663 234099 292966 303918 423613 435062 439449 451326 455877 468198 652593 676989 847226 878898 911754 962407 1225043 1270839 1305186 1318347 1353978 1924814 1957779 2450086 2541678 2636694 2783177 2887221 3675129 3812517 3915558 5419871 5566354 5774442 7350258 7625034 8048647 8349531 8661663 10839742 11025387 15673681 16097294 16259613 16699062 17323326 22050774 23275817 24145941 25048593 31347362 32519226 45326591 46551634 47021043 48291882 48778839 50097186 69827451 72437823 90653182 94042086 97557678 102977549 135979773 139654902 141063129 144875646 205955098 209482353 271959546 282126258 297799939 308932647 407939319 418964706 579926197 595599878 617865294 815878638 861205229 893399817 926797941 1159852394 1677083867 1722410458 1739778591 1786799634 1853595882 2583615687 2680199451 3354167734 3479557182 5031251601 5167231374 5219335773 5360398902 7750847061 10062503202 10438671546 11018597743 15093754803 15501694122 22037195486 30187509606 31864593473 33055793229 62052103079 63729186946 66111586458 95593780419 99167379687 124104206158 186156309237 191187560838 198334759374 286781341257 372312618474 558468927711 573562682514 1116937855422 1178989958501 2357979917002 3536969875503 7073939751006 10610909626509 21221819253018
• Sum of all divisors σ(n): 50214368880000
• Sum of proper divisors (its aliquot sum) s(n): 28992549626982
• 21221819253018 is an abundant number, because the sum of its proper divisors (28992549626982) is greater than itself. Its abundance is 7770730373964

Bases of 21221819253018

• Binary: 100110100110100010110111111111000000100011010₂
• Hexadecimal: 0x134D16FF811A
• Base-36: 7IT6392QI

Squares and roots of 21221819253018

• 21221819253018 squared (21221819253018²) is 450365612407765463502108324
• 21221819253018 cubed (21221819253018³) is 9557577624292359381080851014697799921832
• The square root of 21221819253018 is 4606714.5834116965
• The cube root of 21221819253018 is 27686.0418117791

Scales and comparisons

• 21,221,819,253,018 seconds is equal to 674,788 years, 10 weeks, 6 days, 30 minutes, 18 seconds.
• To count from 1 to 21,221,819,253,018 would take you about one million, six hundred eighty-six thousand, nine hundred seventy 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 21221819253018 cubic inches would be around 2307.2 feet tall.

Recreational maths with 21221819253018

• 21221819253018 backwards is 81035291812212
• The number of decimal digits it has is: 14
• The sum of 21221819253018's digits is 45
• More coming soon!