21073796640

Names of 21073796640

• Cardinal: 21073796640 can be written as Twenty-one billion, seventy-three million, seven hundred ninety-six thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.107379664 × 10¹⁰

Factors of 21073796640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 27521

Divisors of 21073796640

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 30 32 36 39 40 41 45 48 52 60 65 72 78 80 82 90 96 104 117 120 123 130 144 156 160 164 180 195 205 208 234 240 246 260 288 312 328 360 369 390 410 416 468 480 492 520 533 585 615 624 656 720 738 780 820 936 984 1040 1066 1170 1230 1248 1312 1440 1476 1560 1599 1640 1845 1872 1968 2080 2132 2340 2460 2665 2952 3120 3198 3280 3690 3744 3936 4264 4680 4797 4920 5330 5904 6240 6396 6560 7380 7995 8528 9360 9594 9840 10660 11808 12792 14760 15990 17056 18720 19188 19680 21320 23985 25584 27457 29520 31980 38376 42640 47970 51168 54914 59040 63960 76752 82371 85280 95940 109828 127920 137285 153504 164742 191880 219656 247113 255840 274570 329484 356941 383760 411855 439312 494226 549140 658968 713882 767520 823710 878624 988452 1070823 1098280 1125737 1235565 1317936 1427764 1647420 1784705 1976904 2141646 2196560 2251474 2471130 2635872 2855528 3212469 3294840 3377211 3569410 3953808 4283292 4393120 4502948 4942260 5354115 5628685 5711056 6424938 6589680 6754422 7138820 7907616 8566584 9005896 9884520 10131633 10708230 11257370 11422112 12849876 13179360 13508844 14277640 14634581 16062345 16886055 17133168 18011792 19769040 20263266 21416460 22514740 25699752 27017688 28555280 29269162 32124690 33772110 34266336 36023584 39538080 40526532 42832920 43903743 45029480 50658165 51399504 54035376 57110560 58538324 64249380 67544220 73172905 81053064 85665840 87807486 90058960 101316330 102799008 108070752 117076648 128498760 131711229 135088440 146345810 162106128 171331680 175614972 180117920 202632660 219518715 234153296 256997520 263422458 270176880 292691620 324212256 351229944 405265320 439037430 468306592 513995040 526844916 540353760 585383240 658556145 702459888 810530640 878074860 1053689832 1170766480 1317112290 1404919776 1621061280 1756149720 2107379664 2341532960 2634224580 3512299440 4214759328 5268449160 7024598880 10536898320 21073796640
• Sum of all divisors σ(n): 79338023856
• Sum of proper divisors (its aliquot sum) s(n): 58264227216
• 21073796640 is an abundant number, because the sum of its proper divisors (58264227216) is greater than itself. Its abundance is 37190430576

Bases of 21073796640

• Binary: 10011101000000110001001111000100000₂
• Hexadecimal: 0x4E8189E20
• Base-36: 9OISLK0

Squares and roots of 21073796640

• 21073796640 squared (21073796640²) is 444104904824075289600
• 21073796640 cubed (21073796640³) is 9358976451089117629079506944000
• The square root of 21073796640 is 145168.1667584187
• The cube root of 21073796640 is 2762.1521336433

Scales and comparisons

• 21,073,796,640 seconds is equal to 670 years, 4 weeks, 1 day, 16 hours, 24 minutes.
• To count from 1 to 21,073,796,640 would take you about one thousand, three hundred forty 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 21073796640 cubic inches would be around 230.2 feet tall.

Recreational maths with 21073796640

• 21073796640 backwards is 04669737012
• 21073796640 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21073796640's digits is 45
• More coming soon!