20721807443480

Names of 20721807443480

• Cardinal: 20721807443480 can be written as Twenty trillion, seven hundred twenty-one billion, eight hundred seven million, four hundred forty-three thousand, four hundred eighty.

Scientific notation

• Scientific notation: 2.072180744348 × 10¹³

Factors of 20721807443480

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 3622693640

Divisors of 20721807443480

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 5 8 10 11 13 20 22 26 40 44 52 55 65 88 104 110 130 143 220 260 286 440 520 572 715 1144 1430 2860 5720 3622693609 7245387218 14490774436 18113468045 28981548872 36226936090 39849629699 47095016917 72453872180 79699259398 94190033834 144907744360 159398518796 188380067668 199248148495 235475084585 318797037592 376760135336 398496296990 470950169170 518045186087 796992593980 941900338340 1036090372174 1593985187960 1883800676680 2072180744348 2590225930435 4144361488696 5180451860870 10360903721740 20721807443480
• Sum of all divisors σ(n): 54775127383200
• Sum of proper divisors (its aliquot sum) s(n): 34053319939720
• 20721807443480 is an abundant number, because the sum of its proper divisors (34053319939720) is greater than itself. Its abundance is 13331512496240

Bases of 20721807443480

• Binary: 100101101100010101011111110001100011000011000₂
• Hexadecimal: 0x12D8ABF8C618
• Base-36: 7CFGT4PAW

Squares and roots of 20721807443480

• 20721807443480 squared (20721807443480²) is 429393303724663133394510400
• 20721807443480 cubed (20721807443480³) is 8897805357302192926029905766090272192000
• The square root of 20721807443480 is 4552121.2026350967
• The cube root of 20721807443480 is 27466.8724811697

Scales and comparisons

• 20,721,807,443,480 seconds is equal to 658,889 years, 19 weeks, 5 days, 7 hours, 11 minutes, 20 seconds.
• To count from 1 to 20,721,807,443,480 would take you about one million, six hundred forty-seven thousand, two hundred twenty-three 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 20721807443480 cubic inches would be around 2288.9 feet tall.

Recreational maths with 20721807443480

• 20721807443480 backwards is 08434470812702
• The number of decimal digits it has is: 14
• The sum of 20721807443480's digits is 50
• More coming soon!