21361320936

Names of 21361320936

• Cardinal: 21361320936 can be written as Twenty-one billion, three hundred sixty-one million, three hundred twenty thousand, nine hundred thirty-six.

Scientific notation

• Scientific notation: 2.1361320936 × 10¹⁰

Factors of 21361320936

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1619

Divisors of 21361320936

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 24 36 72 521 1042 1093 1563 2084 2186 3126 3279 4168 4372 4689 6252 6558 8744 9378 9837 12504 13116 18756 19674 26232 37512 39348 78696 271441 542882 569453 814323 1085764 1138906 1628646 1708359 2171528 2277812 2442969 3257292 3416718 4555624 4885938 5125077 6514584 6833436 9771876 10250154 13666872 19543752 20500308 41000616 296685013 593370026 890055039 1186740052 1780110078 2373480104 2670165117 3560220156 5340330234 7120440312 10680660468 21361320936
• Sum of all divisors σ(n): 58017866790
• Sum of proper divisors (its aliquot sum) s(n): 36656545854
• 21361320936 is an abundant number, because the sum of its proper divisors (36656545854) is greater than itself. Its abundance is 15295224918

Bases of 21361320936

• Binary: 10011111001001110111110001111101000₂
• Hexadecimal: 0x4F93BE3E8
• Base-36: 9T9Z8Q0

Squares and roots of 21361320936

• 21361320936 squared (21361320936²) is 456306032130791916096
• 21361320936 cubed (21361320936³) is 9747299597378574047561040185856
• The square root of 21361320936 is 146155.1262734223
• The cube root of 21361320936 is 2774.6574123947

Scales and comparisons

• 21,361,320,936 seconds is equal to 679 years, 11 weeks, 4 days, 12 hours, 15 minutes, 36 seconds.
• To count from 1 to 21,361,320,936 would take you about one thousand, three hundred fifty-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 21361320936 cubic inches would be around 231.2 feet tall.

Recreational maths with 21361320936

• 21361320936 backwards is 63902316312
• 21361320936 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21361320936's digits is 36
• More coming soon!