21428294840839320

Names of 21428294840839320

• Cardinal: 21428294840839320 can be written as Twenty-one quadrillion, four hundred twenty-eight trillion, two hundred ninety-four billion, eight hundred forty million, eight hundred thirty-nine thousand, three hundred twenty.

Scientific notation

• Scientific notation: 2.142829484083932 × 10¹⁶

Factors of 21428294840839320

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 16550454

Divisors of 21428294840839320

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 40 42 56 60 70 84 105 120 140 168 210 280 367 420 734 840 1101 1468 1835 2202 2569 2936 3670 4201 4404 5138 5505 7340 7707 8402 8808 10276 11010 12603 12845 14680 15414 16804 20552 21005 22020 25206 25690 29407 30828 33608 38535 42010 44040 50412 51380 58814 61656 63015 77070 84020 88221 100824 102760 117628 126030 147035 154140 168040 176442 235256 252060 294070 308280 352884 441105 504120 588140 705768 882210 1176280 1541767 1764420 3083534 3528840 4625301 6167068 7708835 9250602 10792369 12334136 15417670 16545869 18501204 21584738 23126505 30835340 32377107 33091738 37002408 43169476 46253010 49637607 53961845 61670680 64754214 66183476 82729345 86338952 92506020 99275214 107923690 115821083 129508428 132366952 161885535 165458690 185012040 198550428 215847380 231642166 248188035 259016856 323771070 330917380 347463249 397100856 431694760 463284332 496376070 579105415 647542140 661834760 694926498 926568664 992752140 1158210830 1295084280 1389852996 1737316245 1985504280 2316421660 2779705992 3474632490 4632843320 6072333923 6949264980 12144667846 13898529960 18217001769 24289335692 30361669615 36434003538 42506337461 48578671384 60723339230 69509195669 72868007076 85012674922 91085008845 121446678460 127519012383 139018391338 145736014152 170025349844 182170017690 208527587007 212531687305 242893356920 255038024766 278036782676 340050699688 347545978345 364340035380 417055174014 425063374610 486564369683 510076049532 556073565352 637595061915 695091956690 728680070760 834110348028 850126749220 973128739366 1020152099064 1042637935035 1275190123830 1390183913380 1459693109049 1668220696056 1700253498440 1946257478732 2085275870070 2432821848415 2550380247660 2780367826760 2919386218098 3892514957464 4170551740140 4865643696830 5100760495320 5838772436196 7298465545245 8341103480280 9731287393660 11677544872392 14596931090490 19462574787320 25509874810523 29193862180980 51019749621046 58387724361960 76529624431569 102039499242092 127549374052615 153059248863138 178569123673661 204078998484184 255098748105230 306118497726276 357138247347322 382648122157845 510197496210460 535707371020983 612236995452552 714276494694644 765296244315690 892845618368305 1020394992420920 1071414742041966 1428552989389288 1530592488631380 1785691236736610 2142829484083932 2678536855104915 3061184977262760 3571382473473220 4285658968167864 5357073710209830 7142764946946440 10714147420419660 21428294840839320
• Sum of all divisors σ(n): 73686166365081600
• Sum of proper divisors (its aliquot sum) s(n): 52257871524242280
• 21428294840839320 is an abundant number, because the sum of its proper divisors (52257871524242280) is greater than itself. Its abundance is 30829576683402960

Bases of 21428294840839320

• Binary: 1001100001000001110101110101110001000010110110010011000₂
• Hexadecimal: 0x4C20EBAE216C98
• Base-36: 5UZP2R223KO

Squares and roots of 21428294840839320

• 21428294840839320 squared (21428294840839320²) is 459171819785941018450922058062400
• 21428294840839320 cubed (21428294840839320³) is 9839269136977881921998973945626934219788933568000
• The square root of 21428294840839320 is 146384066.2122736635
• The cube root of 21428294840839320 is 277755.4170976593

Scales and comparisons

• 21,428,294,840,839,320 seconds is equal to 681,353,493 years, 45 weeks, 1 day, 23 hours, 22 minutes.
• To count from 1 to 21,428,294,840,839,320 would take you about two billion, forty-four million, sixty thousand, four hundred eighty-one 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 21428294840839320 cubic inches would be around 23146.3 feet tall.

Recreational maths with 21428294840839320

• 21428294840839320 backwards is 02393804849282412
• The number of decimal digits it has is: 17
• The sum of 21428294840839320's digits is 69
• More coming soon!