21121973050728

Names of 21121973050728

• Cardinal: 21121973050728 can be written as Twenty-one trillion, one hundred twenty-one billion, nine hundred seventy-three million, fifty thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1121973050728 × 10¹³

Factors of 21121973050728

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 63616

Divisors of 21121973050728

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 4 6 8 11 12 17 22 24 33 34 41 44 51 66 68 82 88 102 123 132 136 164 187 204 246 264 328 374 408 451 492 561 697 748 902 984 1122 1353 1394 1496 1804 1861 2091 2244 2706 2788 3608 3722 4182 4488 5412 5576 5583 7444 7667 8364 10824 11166 14888 15334 16728 20471 22332 23001 30668 31637 40942 44664 46002 61336 61413 61681 63274 76301 81884 92004 94911 122826 123362 126548 152602 163768 184008 185043 189822 228903 245652 246724 253096 305204 348007 370086 379644 457806 491304 493448 610408 678491 696014 740172 759288 839311 915612 1044021 1048577 1297117 1356982 1392028 1480344 1678622 1831224 2035473 2088042 2097154 2517933 2528921 2594234 2713964 2784056 3145731 3357244 3891351 4070946 4176084 4194308 5035866 5057842 5188468 5427928 6291462 6714488 7586763 7782702 8141892 8352168 8388616 10071732 10115684 10376936 11534347 12582924 14268287 15173526 15565404 16283784 20143464 20231368 23068694 25165848 27818131 28536574 30347052 31130808 34603041 42804861 42991657 46137388 55636262 57073148 60694104 69206082 83454393 85609722 85983314 92274776 111272524 114146296 114788341 128974971 138412164 166908786 171219444 171966628 222545048 229576682 257949942 276824328 333817572 342438888 343933256 344365023 459153364 472908227 515899884 667635144 688730046 918306728 945816454 1031799768 1262671751 1377460092 1418724681 1891632908 1951401797 2525343502 2754920184 2837449362 3783265816 3788015253 3902803594 4706321981 5050687004 5674898724 5854205391 7576030506 7805607188 9412643962 10101374008 11349797448 11708410782 14118965943 15152061012 15611214376 18825287924 21465419767 23416821564 28237931886 30304122024 37650575848 42930839534 46833643128 51769541791 56475863772 64396259301 80007473677 85861679068 103539083582 112951727544 128792518602 155308625373 160014947354 171723358136 207078167164 240022421031 257585037204 310617250746 320029894708 414156334328 480044842062 515170074408 621234501492 640059789416 880082210447 960089684124 1242469002984 1760164420894 1920179368248 2640246631341 3520328841788 5280493262682 7040657683576 10560986525364 21121973050728
• Sum of all divisors σ(n): 62516177498880
• Sum of proper divisors (its aliquot sum) s(n): 41394204448152
• 21121973050728 is an abundant number, because the sum of its proper divisors (41394204448152) is greater than itself. Its abundance is 20272231397424

Bases of 21121973050728

• Binary: 100110011010111010111101100110101110101101000₂
• Hexadecimal: 0x1335D7B35D68
• Base-36: 7HJATEFZC

Squares and roots of 21121973050728

• 21121973050728 squared (21121973050728²) is 446137745555679895261329984
• 21121973050728 cubed (21121973050728³) is 9423309438539616300901169592955179428352
• The square root of 21121973050728 is 4595864.7772457361
• The cube root of 21121973050728 is 27642.5536644273

Scales and comparisons

• 21,121,973,050,728 seconds is equal to 671,613 years, 21 weeks, 1 day, 16 hours, 18 minutes, 48 seconds.
• To count from 1 to 21,121,973,050,728 would take you about one million, six hundred seventy-nine thousand and thirty-three 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 21121973050728 cubic inches would be around 2303.5 feet tall.

Recreational maths with 21121973050728

• 21121973050728 backwards is 82705037912112
• The number of decimal digits it has is: 14
• The sum of 21121973050728's digits is 48
• More coming soon!