21320477976

Names of 21320477976

• Cardinal: 21320477976 can be written as Twenty-one billion, three hundred twenty million, four hundred seventy-seven thousand, nine hundred seventy-six.

Scientific notation

• Scientific notation: 2.1320477976 × 10¹⁰

Factors of 21320477976

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 701340

Divisors of 21320477976

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 181 362 543 724 1086 1267 1448 2172 2534 3801 4344 5068 7602 10136 15204 30408 701147 1402294 2103441 2804588 4206882 4908029 5609176 8413764 9816058 14724087 16827528 19632116 29448174 39264232 58896348 117792696 126907607 253815214 380722821 507630428 761445642 888353249 1015260856 1522891284 1776706498 2665059747 3045782568 3553412996 5330119494 7106825992 10660238988 21320477976
• Sum of all divisors σ(n): 61252289280
• Sum of proper divisors (its aliquot sum) s(n): 39931811304
• 21320477976 is an abundant number, because the sum of its proper divisors (39931811304) is greater than itself. Its abundance is 18611333328

Bases of 21320477976

• Binary: 10011110110110011001010110100011000₂
• Hexadecimal: 0x4F6CCAD18
• Base-36: 9SLNU3C

Squares and roots of 21320477976

• 21320477976 squared (21320477976²) is 454562781125101056576
• 21320477976 cubed (21320477976³) is 9691495763687025577502937970176
• The square root of 21320477976 is 146015.3347289249
• The cube root of 21320477976 is 2772.8878975317

Scales and comparisons

• 21,320,477,976 seconds is equal to 677 years, 48 weeks, 18 hours, 59 minutes, 36 seconds.
• To count from 1 to 21,320,477,976 would take you about one thousand, three hundred fifty-five 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 21320477976 cubic inches would be around 231.1 feet tall.

Recreational maths with 21320477976

• 21320477976 backwards is 67977402312
• The number of decimal digits it has is: 11
• The sum of 21320477976's digits is 48
• More coming soon!