20684820

Names of 20684820

• Cardinal: 20684820 can be written as Twenty million, six hundred eighty-four thousand, eight hundred twenty.

Scientific notation

• Scientific notation: 2.068482 × 10⁷

Factors of 20684820

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1199

Divisors of 20684820

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 10 12 13 15 20 23 26 30 39 46 52 60 65 69 78 92 115 130 138 156 195 230 260 276 299 345 390 460 598 690 780 897 1153 1196 1380 1495 1794 2306 2990 3459 3588 4485 4612 5765 5980 6918 8970 11530 13836 14989 17295 17940 23060 26519 29978 34590 44967 53038 59956 69180 74945 79557 89934 106076 132595 149890 159114 179868 224835 265190 299780 318228 344747 397785 449670 530380 689494 795570 899340 1034241 1378988 1591140 1723735 2068482 3447470 4136964 5171205 6894940 10342410 20684820
• Sum of all divisors σ(n): 65140992
• Sum of proper divisors (its aliquot sum) s(n): 44456172
• 20684820 is an abundant number, because the sum of its proper divisors (44456172) is greater than itself. Its abundance is 23771352

Bases of 20684820

• Binary: 1001110111010000000010100₂
• Hexadecimal: 0x13BA014
• Base-36: CBCIC

Squares and roots of 20684820

• 20684820 squared (20684820²) is 427861778432400
• 20684820 cubed (20684820³) is 8850243871754076168000
• The square root of 20684820 is 4548.0567278783
• The cube root of 20684820 is 274.5052039319

Scales and comparisons

• 20,684,820 seconds is equal to 34 weeks, 1 day, 9 hours, 47 minutes.
• To count from 1 to 20,684,820 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 20684820 cubic inches would be around 22.9 feet tall.

Recreational maths with 20684820

• 20684820 backwards is 02848602
• 20684820 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 20684820's digits is 30
• More coming soon!