20902050

Names of 20902050

• Cardinal: 20902050 can be written as Twenty million, nine hundred two thousand and fifty.

Scientific notation

• Scientific notation: 2.090205 × 10⁷

Factors of 20902050

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 420

Divisors of 20902050

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 5 6 9 10 13 15 18 25 26 27 30 39 45 50 54 65 75 78 81 90 117 130 135 150 162 195 225 234 270 325 351 390 397 405 450 585 650 675 702 794 810 975 1053 1170 1191 1350 1755 1950 1985 2025 2106 2382 2925 3510 3573 3970 4050 5161 5265 5850 5955 7146 8775 9925 10322 10530 10719 11910 15483 17550 17865 19850 21438 25805 26325 29775 30966 32157 35730 46449 51610 52650 53595 59550 64314 77415 89325 92898 107190 129025 139347 154830 160785 178650 232245 258050 267975 278694 321570 387075 418041 464490 535950 696735 774150 803925 836082 1161225 1393470 1607850 2090205 2322450 3483675 4180410 6967350 10451025 20902050
• Sum of all divisors σ(n): 62701716
• Sum of proper divisors (its aliquot sum) s(n): 41799666
• 20902050 is an abundant number, because the sum of its proper divisors (41799666) is greater than itself. Its abundance is 20897616

Bases of 20902050

• Binary: 1001111101111000010100010₂
• Hexadecimal: 0x13EF0A2
• Base-36: CG04I

Squares and roots of 20902050

• 20902050 squared (20902050²) is 436895694202500
• 20902050 cubed (20902050³) is 9132015645005365125000
• The square root of 20902050 is 4571.8759825701
• The cube root of 20902050 is 275.4628019733

Scales and comparisons

• 20,902,050 seconds is equal to 34 weeks, 3 days, 22 hours, 7 minutes, 30 seconds.
• To count from 1 to 20,902,050 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 20902050 cubic inches would be around 23 feet tall.

Recreational maths with 20902050

• 20902050 backwards is 05020902
• 20902050 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 20902050's digits is 18
• More coming soon!