20641005

Names of 20641005

• Cardinal: 20641005 can be written as Twenty million, six hundred forty-one thousand and five.

Scientific notation

• Scientific notation: 2.0641005 × 10⁷

Factors of 20641005

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 86

Divisors of 20641005

• Number of divisors d(n): 144
• Complete list of divisors:
  1 3 5 7 9 11 15 21 23 33 35 37 45 49 55 63 69 77 99 105 111 115 147 161 165 185 207 231 245 253 259 315 333 345 385 407 441 483 495 539 555 693 735 759 777 805 851 1035 1127 1155 1221 1265 1295 1449 1617 1665 1771 1813 2035 2205 2277 2331 2415 2553 2695 2849 3381 3465 3663 3795 3885 4255 4851 5313 5439 5635 5957 6105 7245 7659 8085 8547 8855 9065 9361 10143 11385 11655 12397 12765 14245 15939 16317 16905 17871 18315 19943 24255 25641 26565 27195 28083 29785 37191 38295 41699 42735 46805 50715 53613 59829 61985 65527 79695 81585 84249 89355 99715 111573 125097 128205 140415 179487 185955 196581 208495 268065 299145 327635 375291 421245 458689 557865 589743 625485 897435 982905 1376067 1876455 2293445 2948715 4128201 6880335 20641005
• Sum of all divisors σ(n): 48657024
• Sum of proper divisors (its aliquot sum) s(n): 28016019
• 20641005 is an abundant number, because the sum of its proper divisors (28016019) is greater than itself. Its abundance is 7375014

Bases of 20641005

• Binary: 1001110101111010011101101₂
• Hexadecimal: 0x13AF4ED
• Base-36: CAEP9

Squares and roots of 20641005

• 20641005 squared (20641005²) is 426051087410025
• 20641005 cubed (20641005³) is 8794122625485763075125
• The square root of 20641005 is 4543.2372819391
• The cube root of 20641005 is 274.3112461121

Scales and comparisons

• 20,641,005 seconds is equal to 34 weeks, 21 hours, 36 minutes, 45 seconds.
• To count from 1 to 20,641,005 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 20641005 cubic inches would be around 22.9 feet tall.

Recreational maths with 20641005

• 20641005 backwards is 50014602
• The number of decimal digits it has is: 8
• The sum of 20641005's digits is 18
• More coming soon!