20925732720

Names of 20925732720

• Cardinal: 20925732720 can be written as Twenty billion, nine hundred twenty-five million, seven hundred thirty-two thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.092573272 × 10¹⁰

Factors of 20925732720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 21844

Divisors of 20925732720

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 5261 10522 15783 16573 21044 26305 31566 33146 42088 49719 52610 63132 66292 78915 82865 84176 99438 105220 126264 132584 157830 165730 198876 210440 248595 252528 265168 315660 331460 397752 420880 497190 631320 662920 795504 994380 1262640 1325840 1988760 3977520 87190553 174381106 261571659 348762212 435952765 523143318 697524424 871905530 1046286636 1307858295 1395048848 1743811060 2092573272 2615716590 3487622120 4185146544 5231433180 6975244240 10462866360 20925732720
• Sum of all divisors σ(n): 64886016672
• Sum of proper divisors (its aliquot sum) s(n): 43960283952
• 20925732720 is an abundant number, because the sum of its proper divisors (43960283952) is greater than itself. Its abundance is 23034551232

Bases of 20925732720

• Binary: 10011011111010001010101011101110000₂
• Hexadecimal: 0x4DF455770
• Base-36: 9M2N2PC

Squares and roots of 20925732720

• 20925732720 squared (20925732720²) is 437886289868878598400
• 20925732720 cubed (20925732720³) is 9163091463548597396246619648000
• The square root of 20925732720 is 144657.2940435427
• The cube root of 20925732720 is 2755.6679888751

Scales and comparisons

• 20,925,732,720 seconds is equal to 665 years, 19 weeks, 2 days, 23 hours, 32 minutes.
• To count from 1 to 20,925,732,720 would take you about one thousand, three hundred thirty 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 20925732720 cubic inches would be around 229.6 feet tall.

Recreational maths with 20925732720

• 20925732720 backwards is 02723752902
• The number of decimal digits it has is: 11
• The sum of 20925732720's digits is 39
• More coming soon!