20935740

Names of 20935740

• Cardinal: 20935740 can be written as Twenty million, nine hundred thirty-five thousand, seven hundred forty.

Scientific notation

• Scientific notation: 2.093574 × 10⁷

Factors of 20935740

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 7138

Divisors of 20935740

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 49 60 70 84 98 105 140 147 196 210 245 294 420 490 588 735 980 1470 2940 7121 14242 21363 28484 35605 42726 49847 71210 85452 99694 106815 142420 149541 199388 213630 249235 299082 348929 427260 498470 598164 697858 747705 996940 1046787 1395716 1495410 1744645 2093574 2990820 3489290 4187148 5233935 6978580 10467870 20935740
• Sum of all divisors σ(n): 68200272
• Sum of proper divisors (its aliquot sum) s(n): 47264532
• 20935740 is an abundant number, because the sum of its proper divisors (47264532) is greater than itself. Its abundance is 26328792

Bases of 20935740

• Binary: 1001111110111010000111100₂
• Hexadecimal: 0x13F743C
• Base-36: CGQ4C

Squares and roots of 20935740

• 20935740 squared (20935740²) is 438305209347600
• 20935740 cubed (20935740³) is 9176243903546923224000
• The square root of 20935740 is 4575.5589822447
• The cube root of 20935740 is 275.6107198447

Scales and comparisons

• 20,935,740 seconds is equal to 34 weeks, 4 days, 7 hours, 29 minutes.
• To count from 1 to 20,935,740 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 20935740 cubic inches would be around 23 feet tall.

Recreational maths with 20935740

• 20935740 backwards is 04753902
• 20935740 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 20935740's digits is 30
• More coming soon!