20889090

Names of 20889090

• Cardinal: 20889090 can be written as Twenty million, eight hundred eighty-nine thousand and ninety.

Scientific notation

• Scientific notation: 2.088909 × 10⁷

Factors of 20889090

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 105

Divisors of 20889090

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 5 6 9 10 15 17 18 27 30 34 37 41 45 51 54 74 81 82 85 90 102 111 123 135 153 162 170 185 205 222 246 255 270 306 333 369 370 405 410 459 510 555 615 629 666 697 738 765 810 918 999 1107 1110 1230 1258 1377 1394 1517 1530 1665 1845 1887 1998 2091 2214 2295 2754 2997 3034 3145 3321 3330 3485 3690 3774 4182 4551 4590 4995 5535 5661 5994 6273 6290 6642 6885 6970 7585 9102 9435 9990 10455 11070 11322 12546 13653 13770 14985 15170 16605 16983 18819 18870 20910 22755 25789 27306 28305 29970 31365 33210 33966 37638 40959 45510 50949 51578 56457 56610 62730 68265 77367 81918 84915 94095 101898 112914 122877 128945 136530 154734 169830 188190 204795 232101 245754 254745 257890 282285 386835 409590 464202 509490 564570 614385 696303 773670 1160505 1228770 1392606 2088909 2321010 3481515 4177818 6963030 10444545 20889090
• Sum of all divisors σ(n): 62569584
• Sum of proper divisors (its aliquot sum) s(n): 41680494
• 20889090 is an abundant number, because the sum of its proper divisors (41680494) is greater than itself. Its abundance is 20791404

Bases of 20889090

• Binary: 1001111101011111000000010₂
• Hexadecimal: 0x13EBE02
• Base-36: CFQ4I

Squares and roots of 20889090

• 20889090 squared (20889090²) is 436354081028100
• 20889090 cubed (20889090³) is 9115039670463273429000
• The square root of 20889090 is 4570.4584015173
• The cube root of 20889090 is 275.4058580211

Scales and comparisons

• 20,889,090 seconds is equal to 34 weeks, 3 days, 18 hours, 31 minutes, 30 seconds.
• To count from 1 to 20,889,090 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 20889090 cubic inches would be around 23 feet tall.

Recreational maths with 20889090

• 20889090 backwards is 09098802
• The number of decimal digits it has is: 8
• The sum of 20889090's digits is 36
• More coming soon!