21398219017020

Names of 21398219017020

• Cardinal: 21398219017020 can be written as Twenty-one trillion, three hundred ninety-eight billion, two hundred nineteen million, seventeen thousand and twenty.

Scientific notation

• Scientific notation: 2.139821901702 × 10¹³

Factors of 21398219017020

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 13208777181

Divisors of 21398219017020

• Number of divisors d(n): 60
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 81 90 108 135 162 180 270 324 405 540 810 1620 13208777171 26417554342 39626331513 52835108684 66043885855 79252663026 118878994539 132087771710 158505326052 198131657565 237757989078 264175543420 356636983617 396263315130 475515978156 594394972695 713273967234 792526630260 1069910950851 1188789945390 1426547934468 1783184918085 2139821901702 2377579890780 3566369836170 4279643803404 5349554754255 7132739672340 10699109508510 21398219017020
• Sum of all divisors σ(n): 67127005588104
• Sum of proper divisors (its aliquot sum) s(n): 45728786571084
• 21398219017020 is an abundant number, because the sum of its proper divisors (45728786571084) is greater than itself. Its abundance is 24330567554064

Bases of 21398219017020

• Binary: 100110111011000101001001111100100101100111100₂
• Hexadecimal: 0x1376293E4B3C
• Base-36: 7L27F47R0

Squares and roots of 21398219017020

• 21398219017020 squared (21398219017020²) is 457883777100356375049680400
• 21398219017020 cubed (21398219017020³) is 9797897346733792577607262582553160408000
• The square root of 21398219017020 is 4625820.9019610779
• The cube root of 21398219017020 is 27762.5407774169

Scales and comparisons

• 21,398,219,017,020 seconds is equal to 680,397 years, 9 weeks, 22 hours, 57 minutes.
• To count from 1 to 21,398,219,017,020 would take you about one million, seven hundred thousand, nine hundred ninety-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 21398219017020 cubic inches would be around 2313.5 feet tall.

Recreational maths with 21398219017020

• 21398219017020 backwards is 02071091289312
• 21398219017020 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21398219017020's digits is 45
• More coming soon!