20490900639820

Names of 20490900639820

• Cardinal: 20490900639820 can be written as Twenty trillion, four hundred ninety billion, nine hundred million, six hundred thirty-nine thousand, eight hundred twenty.

Scientific notation

• Scientific notation: 2.049090063982 × 10¹³

Factors of 20490900639820

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 8425

Divisors of 20490900639820

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 5 10 13 17 20 26 34 52 65 68 85 130 169 170 197 221 260 289 338 340 394 442 578 676 788 845 884 985 1105 1156 1445 1690 1970 2197 2210 2561 2873 2890 3349 3380 3757 3940 4394 4420 5122 5746 5780 6698 7514 8191 8788 10244 10985 11492 12805 13396 14365 15028 16382 16745 18785 21970 25610 28730 32764 33293 33490 37349 37570 40955 43537 43940 48841 51220 56933 57460 66586 66980 74698 75140 81910 87074 97682 106483 113866 133172 139247 149396 163820 166465 174148 186745 195364 212966 217685 227732 244205 278494 284665 332930 373490 425932 432809 435370 488410 532415 556988 565981 569330 634933 665860 696235 740129 746980 865618 870740 976820 1064830 1131962 1138660 1269866 1384279 1392470 1480258 1613627 1731236 1810211 2129660 2164045 2263924 2367199 2539732 2768558 2784940 2829905 2960516 3174665 3227254 3620422 3700645 4328090 4734398 5537116 5659810 6349330 6454508 6921395 7240844 7357753 7401290 8068135 8656180 9051055 9468796 9621677 11319620 11835995 12698660 13842790 14715506 14802580 16136270 17995627 18102110 19243354 20977151 23532743 23671990 27431659 27685580 29431012 30773587 32272540 35991254 36204220 36788765 38486708 41954302 47065486 47343980 48108385 54863318 61547174 71982508 73577530 83908604 89978135 94130972 96216770 104885755 109726636 117663715 123094348 125081801 137158295 147155060 153867935 179956270 192433540 209771510 235327430 250163602 272702963 274316590 305925659 307735870 356611567 359912540 400056631 419543020 466338203 470654860 500327204 545405926 548633180 611851318 615471740 625409005 713223134 800113262 932676406 1090811852 1223702636 1250818010 1363514815 1426446268 1529628295 1600226524 1783057835 1865352812 2000283155 2331691015 2501636020 2727029630 3059256590 3545138519 3566115670 4000566310 4635950371 4663382030 5200736203 5454059260 6062396639 6118513180 7090277038 7132231340 8001132620 9271900742 9326764060 10401472406 12124793278 14180554076 17725692595 18543801484 20802944812 23179751855 24249586556 26003681015 30311983195 35451385190 46359503710 52007362030 60267354823 60623966390 70902770380 78811156307 92719007420 104014724060 120534709646 121247932780 157622312614 241069419292 301336774115 315244625228 394055781535 602673548230 788111563070 1024545031991 1205347096460 1576223126140 2049090063982 4098180127964 5122725159955 10245450319910 20490900639820
• Sum of all divisors σ(n): 49775972843520
• Sum of proper divisors (its aliquot sum) s(n): 29285072203700
• 20490900639820 is an abundant number, because the sum of its proper divisors (29285072203700) is greater than itself. Its abundance is 8794171563880

Bases of 20490900639820

• Binary: 100101010001011101000110110101001000001001100₂
• Hexadecimal: 0x12A2E8DA904C
• Base-36: 79HE16JBG

Squares and roots of 20490900639820

• 20490900639820 squared (20490900639820²) is 419877009030975685369632400
• 20490900639820 cubed (20490900639820³) is 8603658072998527589539463558358202168000
• The square root of 20490900639820 is 4526687.6013062795
• The cube root of 20490900639820 is 27364.4684087563

Scales and comparisons

• 20,490,900,639,820 seconds is equal to 651,547 years, 13 weeks, 2 days, 20 hours, 23 minutes, 40 seconds.
• To count from 1 to 20,490,900,639,820 would take you about one million, six hundred twenty-eight thousand, eight hundred sixty-eight 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 20490900639820 cubic inches would be around 2280.4 feet tall.

Recreational maths with 20490900639820

• 20490900639820 backwards is 02893600909402
• 20490900639820 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 20490900639820's digits is 52
• More coming soon!