21040581360

Names of 21040581360

• Cardinal: 21040581360 can be written as Twenty-one billion, forty million, five hundred eighty-one thousand, three hundred sixty.

Scientific notation

• Scientific notation: 2.104058136 × 10¹⁰

Factors of 21040581360

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 87669099

Divisors of 21040581360

• Number of divisors d(n): 40
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 87669089 175338178 263007267 350676356 438345445 526014534 701352712 876690890 1052029068 1315036335 1402705424 1753381780 2104058136 2630072670 3506763560 4208116272 5260145340 7013527120 10520290680 21040581360
• Sum of all divisors σ(n): 65225802960
• Sum of proper divisors (its aliquot sum) s(n): 44185221600
• 21040581360 is an abundant number, because the sum of its proper divisors (44185221600) is greater than itself. Its abundance is 23144640240

Bases of 21040581360

• Binary: 10011100110000111011100101011110000₂
• Hexadecimal: 0x4E61DCAF0
• Base-36: 9NZ0OHC

Squares and roots of 21040581360

• 21040581360 squared (21040581360²) is 442706063966779449600
• 21040581360 cubed (21040581360³) is 9314792957458387346484819456000
• The square root of 21040581360 is 145053.7188768355
• The cube root of 21040581360 is 2760.7001899223

Scales and comparisons

• 21,040,581,360 seconds is equal to 669 years, 1 week, 2 days, 5 hours, 56 minutes.
• To count from 1 to 21,040,581,360 would take you about one thousand, three hundred thirty-eight 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 21040581360 cubic inches would be around 230.1 feet tall.

Recreational maths with 21040581360

• 21040581360 backwards is 06318504012
• 21040581360 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21040581360's digits is 30
• More coming soon!