20528690

Names of 20528690

• Cardinal: 20528690 can be written as Twenty million, five hundred twenty-eight thousand, six hundred ninety.

Scientific notation

• Scientific notation: 2.052869 × 10⁷

Factors of 20528690

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 1371

Divisors of 20528690

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 5 7 10 13 14 17 26 34 35 65 70 85 91 119 130 170 182 221 238 442 455 595 910 1105 1190 1327 1547 2210 2654 3094 6635 7735 9289 13270 15470 17251 18578 22559 34502 45118 46445 86255 92890 112795 120757 157913 172510 225590 241514 293267 315826 586534 603785 789565 1207570 1466335 1579130 2052869 2932670 4105738 10264345 20528690
• Sum of all divisors σ(n): 48190464
• Sum of proper divisors (its aliquot sum) s(n): 27661774
• 20528690 is an abundant number, because the sum of its proper divisors (27661774) is greater than itself. Its abundance is 7133084

Bases of 20528690

• Binary: 1001110010011111000110010₂
• Hexadecimal: 0x1393E32
• Base-36: C801E

Squares and roots of 20528690

• 20528690 squared (20528690²) is 421427113116100
• 20528690 cubed (20528690³) is 8651346562755350909000
• The square root of 20528690 is 4530.8597418153
• The cube root of 20528690 is 273.8127994757

Scales and comparisons

• 20,528,690 seconds is equal to 33 weeks, 6 days, 14 hours, 24 minutes, 50 seconds.
• To count from 1 to 20,528,690 would take you about fifty 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 20528690 cubic inches would be around 22.8 feet tall.

Recreational maths with 20528690

• 20528690 backwards is 09682502
• The number of decimal digits it has is: 8
• The sum of 20528690's digits is 32
• More coming soon!