20820977720

Names of 20820977720

• Cardinal: 20820977720 can be written as Twenty billion, eight hundred twenty million, nine hundred seventy-seven thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.082097772 × 10¹⁰

Factors of 20820977720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 58508

Divisors of 20820977720

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 5 8 10 20 40 79 113 158 226 316 395 452 565 632 790 904 1130 1580 2260 3160 4520 8927 17854 35708 44635 58309 71416 89270 116618 178540 233236 291545 357080 466472 583090 1166180 2332360 4606411 6588917 9212822 13177834 18425644 23032055 26355668 32944585 36851288 46064110 52711336 65889170 92128220 131778340 184256440 263556680 520524443 1041048886 2082097772 2602622215 4164195544 5205244430 10410488860 20820977720
• Sum of all divisors σ(n): 47860848000
• Sum of proper divisors (its aliquot sum) s(n): 27039870280
• 20820977720 is an abundant number, because the sum of its proper divisors (27039870280) is greater than itself. Its abundance is 6218892560

Bases of 20820977720

• Binary: 10011011001000001101110100000111000₂
• Hexadecimal: 0x4D906E838
• Base-36: 9KC9T88

Squares and roots of 20820977720

• 20820977720 squared (20820977720²) is 433513113216736398400
• 20820977720 cubed (20820977720³) is 9026166871613506082199443648000
• The square root of 20820977720 is 144294.7598494137
• The cube root of 20820977720 is 2751.0619686893

Scales and comparisons

• 20,820,977,720 seconds is equal to 662 years, 2 weeks, 1 day, 12 hours, 55 minutes, 20 seconds.
• To count from 1 to 20,820,977,720 would take you about one thousand, three hundred twenty-four years!

  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 20820977720 cubic inches would be around 229.3 feet tall.

Recreational maths with 20820977720

• 20820977720 backwards is 02777902802
• The number of decimal digits it has is: 11
• The sum of 20820977720's digits is 44
• More coming soon!