20899620

Names of 20899620

• Cardinal: 20899620 can be written as Twenty million, eight hundred ninety-nine thousand, six hundred twenty.

Scientific notation

• Scientific notation: 2.089962 × 10⁷

Factors of 20899620

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 133

Divisors of 20899620

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 18 19 20 21 27 28 30 35 36 38 42 45 54 57 60 63 70 76 81 84 90 95 97 105 108 114 126 133 135 140 162 171 180 189 190 194 210 228 252 266 270 285 291 315 324 342 378 380 388 399 405 420 485 513 532 540 567 570 582 630 665 679 684 756 798 810 855 873 945 970 1026 1134 1140 1164 1197 1260 1330 1358 1455 1539 1596 1620 1710 1746 1843 1890 1940 1995 2037 2052 2268 2394 2565 2619 2660 2716 2835 2910 3078 3395 3420 3492 3591 3686 3780 3990 4074 4365 4788 5130 5238 5529 5670 5820 5985 6111 6156 6790 7182 7372 7695 7857 7980 8148 8730 9215 10185 10260 10476 10773 11058 11340 11970 12222 12901 13095 13580 14364 15390 15714 16587 17460 17955 18333 18430 20370 21546 22116 23940 24444 25802 26190 27645 30555 30780 31428 33174 35910 36666 36860 38703 39285 40740 43092 49761 51604 52380 53865 54999 55290 61110 64505 66348 71820 73332 77406 78570 82935 91665 99522 107730 109998 110580 116109 122220 129010 149283 154812 157140 165870 183330 193515 199044 215460 219996 232218 248805 258020 274995 298566 331740 348327 366660 387030 464436 497610 549990 580545 597132 696654 746415 774060 995220 1044981 1099980 1161090 1393308 1492830 1741635 2089962 2322180 2985660 3483270 4179924 5224905 6966540 10449810 20899620
• Sum of all divisors σ(n): 79685760
• Sum of proper divisors (its aliquot sum) s(n): 58786140
• 20899620 is an abundant number, because the sum of its proper divisors (58786140) is greater than itself. Its abundance is 37886520

Bases of 20899620

• Binary: 1001111101110011100100100₂
• Hexadecimal: 0x13EE724
• Base-36: CFY90

Squares and roots of 20899620

• 20899620 squared (20899620²) is 436794116144400
• 20899620 cubed (20899620³) is 9128831045653825128000
• The square root of 20899620 is 4571.6102196055
• The cube root of 20899620 is 275.4521267757

Scales and comparisons

• 20,899,620 seconds is equal to 34 weeks, 3 days, 21 hours, 27 minutes.
• To count from 1 to 20,899,620 would take you about fifty-one weeks!

  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 20899620 cubic inches would be around 23 feet tall.

Recreational maths with 20899620

• 20899620 backwards is 02699802
• 20899620 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 20899620's digits is 36
• More coming soon!