20949860820

Names of 20949860820

• Cardinal: 20949860820 can be written as Twenty billion, nine hundred forty-nine million, eight hundred sixty thousand, eight hundred twenty.

Scientific notation

• Scientific notation: 2.094986082 × 10¹⁰

Factors of 20949860820

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 7125820

Divisors of 20949860820

• 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 7125803 14251606 21377409 28503212 35629015 42754818 49880621 71258030 85509636 99761242 106887045 142516060 149641863 199522484 213774090 249403105 299283726 349164347 427548180 498806210 598567452 698328694 748209315 997612420 1047493041 1396657388 1496418630 1745821735 2094986082 2992837260 3491643470 4189972164 5237465205 6983286940 10474930410 20949860820
• Sum of all divisors σ(n): 68236699104
• Sum of proper divisors (its aliquot sum) s(n): 47286838284
• 20949860820 is an abundant number, because the sum of its proper divisors (47286838284) is greater than itself. Its abundance is 26336977464

Bases of 20949860820

• Binary: 10011100000101101011000000111010100₂
• Hexadecimal: 0x4E0B581D4
• Base-36: 9MH082C

Squares and roots of 20949860820

• 20949860820 squared (20949860820²) is 438896668377371072400
• 20949860820 cubed (20949860820³) is 9194824116867619204274143368000
• The square root of 20949860820 is 144740.6674711707
• The cube root of 20949860820 is 2756.7267091809

Scales and comparisons

• 20,949,860,820 seconds is equal to 666 years, 7 weeks, 2 days, 5 hours, 47 minutes.
• To count from 1 to 20,949,860,820 would take you about one thousand, three hundred thirty-two 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 20949860820 cubic inches would be around 229.7 feet tall.

Recreational maths with 20949860820

• 20949860820 backwards is 02806894902
• The number of decimal digits it has is: 11
• The sum of 20949860820's digits is 48
• More coming soon!