21275908220

Names of 21275908220

• Cardinal: 21275908220 can be written as Twenty-one billion, two hundred seventy-five million, nine hundred eight thousand, two hundred twenty.

Scientific notation

• Scientific notation: 2.127590822 × 10¹⁰

Factors of 21275908220

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 50681

Divisors of 21275908220

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 7 10 14 20 28 31 35 62 70 97 124 140 155 194 217 310 388 434 485 620 679 868 970 1085 1358 1940 2170 2716 3007 3395 4340 6014 6790 12028 13580 15035 21049 30070 42098 50539 60140 84196 101078 105245 202156 210490 252695 353773 420980 505390 707546 1010780 1415092 1566709 1768865 3133418 3537730 4902283 6266836 7075460 7833545 9804566 10966963 15667090 19609132 21933926 24511415 31334180 34315981 43867852 49022830 54834815 68631962 98045660 109669630 137263924 151970773 171579905 219339260 303941546 343159810 607883092 686319620 759853865 1063795411 1519707730 2127590822 3039415460 4255181644 5318977055 10637954110 21275908220
• Sum of all divisors σ(n): 53253795840
• Sum of proper divisors (its aliquot sum) s(n): 31977887620
• 21275908220 is an abundant number, because the sum of its proper divisors (31977887620) is greater than itself. Its abundance is 10701979400

Bases of 21275908220

• Binary: 10011110100001001001001100001111100₂
• Hexadecimal: 0x4F424987C
• Base-36: 9RV4JUK

Squares and roots of 21275908220

• 21275908220 squared (21275908220²) is 452664270585863568400
• 21275908220 cubed (21275908220³) is 9630843475458078910720092248000
• The square root of 21275908220 is 145862.6347629853
• The cube root of 21275908220 is 2770.9543393279

Scales and comparisons

• 21,275,908,220 seconds is equal to 676 years, 26 weeks, 2 days, 22 hours, 30 minutes, 20 seconds.
• To count from 1 to 21,275,908,220 would take you about one thousand, three hundred fifty-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 21275908220 cubic inches would be around 230.9 feet tall.

Recreational maths with 21275908220

• 21275908220 backwards is 02280957212
• The number of decimal digits it has is: 11
• The sum of 21275908220's digits is 38
• More coming soon!