2108205990

Names of 2108205990

• Cardinal: 2108205990 can be written as Two billion, one hundred eight million, two hundred five thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 2.10820599 × 10⁹

Factors of 2108205990

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 506

Divisors of 2108205990

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 5 6 9 10 11 15 18 19 22 23 30 33 38 45 46 55 57 66 69 90 95 99 110 114 115 121 138 165 171 190 198 207 209 230 242 253 285 330 342 345 363 414 418 437 443 495 506 570 605 627 690 726 759 855 874 886 990 1035 1045 1089 1210 1254 1265 1311 1329 1518 1710 1815 1881 2070 2090 2178 2185 2215 2277 2299 2530 2622 2658 2783 3135 3630 3762 3795 3933 3987 4370 4430 4554 4598 4807 4873 5445 5566 6270 6555 6645 6897 7590 7866 7974 8349 8417 9405 9614 9746 10189 10890 11385 11495 13110 13290 13794 13915 14421 14619 16698 16834 18810 19665 19935 20378 20691 22770 22990 24035 24365 25047 25251 27830 28842 29238 30567 34485 39330 39870 41382 41745 42085 43263 43857 48070 48730 50094 50502 50945 52877 53603 61134 68970 72105 73095 75753 83490 84170 86526 87714 91701 92587 101890 103455 105754 107206 112079 125235 126255 144210 146190 151506 152835 158631 160809 183402 185174 193591 206910 216315 219285 224158 250470 252510 264385 268015 277761 305670 317262 321618 336237 378765 387182 432630 438570 458505 462935 475893 482427 528770 536030 555522 560395 580773 672474 757530 793155 804045 833283 917010 925870 951786 964854 967955 1008711 1018457 1120790 1161546 1232869 1388805 1586310 1608090 1666566 1681185 1742319 1935910 2017422 2036914 2129501 2379465 2412135 2465738 2777610 2903865 3055371 3362370 3484638 3698607 4166415 4259002 4758930 4824270 5043555 5092285 5807730 6110742 6164345 6388503 7397214 8332830 8711595 9166113 10087110 10184570 10647505 11095821 12328690 12777006 15276855 17423190 18332226 18493035 19165509 21295010 22191642 23424511 30553710 31942515 36986070 38331018 45830565 46849022 55479105 63885030 70273533 91661130 95827545 110958210 117122555 140547066 191655090 210820599 234245110 351367665 421641198 702735330 1054102995 2108205990
• Sum of all divisors σ(n): 6632720640
• Sum of proper divisors (its aliquot sum) s(n): 4524514650
• 2108205990 is an abundant number, because the sum of its proper divisors (4524514650) is greater than itself. Its abundance is 2416308660

Bases of 2108205990

• Binary: 1111101101010001010101110100110₂
• Hexadecimal: 0x7DA8ABA6
• Base-36: YV665I

Squares and roots of 2108205990

• 2108205990 squared (2108205990²) is 4444532496271880100
• 2108205990 cubed (2108205990³) is 9369990031390030295381799000
• The square root of 2108205990 is 45915.2043445305
• The cube root of 2108205990 is 1282.2450002005

Scales and comparisons

• 2,108,205,990 seconds is equal to 67 years, 1 week, 5 days, 12 hours, 46 minutes, 30 seconds.
• To count from 1 to 2,108,205,990 would take you about one hundred thirty-four 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 2108205990 cubic inches would be around 106.9 feet tall.

Recreational maths with 2108205990

• 2108205990 backwards is 0995028012
• The number of decimal digits it has is: 10
• The sum of 2108205990's digits is 36
• More coming soon!