21378646250

Names of 21378646250

• Cardinal: 21378646250 can be written as Twenty-one billion, three hundred seventy-eight million, six hundred forty-six thousand, two hundred fifty.

Scientific notation

• Scientific notation: 2.137864625 × 10¹⁰

Factors of 21378646250

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 88

Divisors of 21378646250

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 5 10 13 25 26 31 37 50 62 65 74 125 130 155 185 250 310 325 370 403 481 625 650 775 806 925 961 962 1147 1250 1369 1550 1625 1850 1922 2015 2294 2405 2738 3250 3875 4030 4625 4805 4810 5735 6845 7750 8125 9250 9610 10075 11470 12025 12493 13690 14911 16250 17797 19375 20150 23125 24025 24050 24986 28675 29822 34225 35557 35594 38750 42439 46250 48050 50375 57350 60125 62465 68450 71114 74555 84878 88985 100750 120125 120250 124930 143375 149110 171125 177785 177970 212195 240250 251875 286750 300625 312325 342250 355570 372775 424390 444925 462241 503750 551707 600625 601250 624650 716875 745550 855625 888925 889850 924482 1060975 1103414 1201250 1315609 1433750 1561625 1711250 1777850 1863875 2121950 2224625 2311205 2631218 2758535 3123250 3727750 4444625 4449250 4622410 5304875 5517070 6578045 7808125 8889250 9319375 10609750 11123125 11556025 13156090 13792675 15616250 17102917 18638750 22223125 22246250 23112050 26524375 27585350 32890225 34205834 44446250 53048750 57780125 65780450 68963375 85514585 115560250 137926750 164451125 171029170 288900625 328902250 344816875 427572925 577801250 689633750 822255625 855145850 1644511250 2137864625 4275729250 10689323125 21378646250
• Sum of all divisors σ(n): 45829347102
• Sum of proper divisors (its aliquot sum) s(n): 24450700852
• 21378646250 is an abundant number, because the sum of its proper divisors (24450700852) is greater than itself. Its abundance is 3072054602

Bases of 21378646250

• Binary: 10011111010010001000100000011101010₂
• Hexadecimal: 0x4FA4440EA
• Base-36: 9TKAL0Q

Squares and roots of 21378646250

• 21378646250 squared (21378646250²) is 457046515482639062500
• 21378646250 cubed (21378646250³) is 9771035774298488533619140625000
• The square root of 21378646250 is 146214.3845522731
• The cube root of 21378646250 is 2775.4073476091

Scales and comparisons

• 21,378,646,250 seconds is equal to 679 years, 40 weeks, 2 days, 50 minutes, 50 seconds.
• To count from 1 to 21,378,646,250 would take you about one thousand, three hundred fifty-nine 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 21378646250 cubic inches would be around 231.3 feet tall.

Recreational maths with 21378646250

• 21378646250 backwards is 05264687312
• The number of decimal digits it has is: 11
• The sum of 21378646250's digits is 44
• More coming soon!