21384540683

Names of 21384540683

• Cardinal: 21384540683 can be written as Twenty-one billion, three hundred eighty-four million, five hundred forty thousand, six hundred eighty-three.

Scientific notation

• Scientific notation: 2.1384540683 × 10¹⁰

Factors of 21384540683

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 804

Divisors of 21384540683

• Number of divisors d(n): 64
• Complete list of divisors:
  1 11 31 37 41 67 341 407 451 617 737 1147 1271 1517 2077 2479 2747 6787 12617 13981 16687 19127 22829 22847 25297 27269 30217 41339 47027 76849 85157 101639 210397 251119 278267 454729 517297 707699 784207 845339 935989 936727 1118029 1281509 1529543 1694899 3150809 7784689 8626277 10295879 14096599 16824973 18643889 29015659 34658899 47415833 52541869 62711263 319172249 521574163 577960559 689823893 1944049153 21384540683
• Sum of all divisors σ(n): 25754996736
• Sum of proper divisors (its aliquot sum) s(n): 4370456053
• 21384540683 is a deficient number, because the sum of its proper divisors (4370456053) is less than itself. Its deficiency is 17014084630

Bases of 21384540683

• Binary: 10011111010100111100011001000001011₂
• Hexadecimal: 0x4FA9E320B
• Base-36: 9TNSX6Z

Squares and roots of 21384540683

• 21384540683 squared (21384540683²) is 457298580222882106489
• 21384540683 cubed (21384540683³) is 9779120093054361613726758791987
• The square root of 21384540683 is 146234.5399794453
• The cube root of 21384540683 is 2775.6623988283

Scales and comparisons

• 21,384,540,683 seconds is equal to 679 years, 50 weeks, 6 hours, 11 minutes, 23 seconds.
• To count from 1 to 21,384,540,683 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 21384540683 cubic inches would be around 231.3 feet tall.

Recreational maths with 21384540683

• 21384540683 backwards is 38604548312
• The number of decimal digits it has is: 11
• The sum of 21384540683's digits is 44
• More coming soon!