21508235122473

Names of 21508235122473

• Cardinal: 21508235122473 can be written as Twenty-one trillion, five hundred eight billion, two hundred thirty-five million, one hundred twenty-two thousand, four hundred seventy-three.

Scientific notation

• Scientific notation: 2.1508235122473 × 10¹³

Factors of 21508235122473

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 31851279

Divisors of 21508235122473

• Number of divisors d(n): 48
• Complete list of divisors:
  1 3 9 11 19 33 57 99 171 209 359 627 1077 1881 3231 3949 6821 11847 20463 35541 61389 75031 225093 675279 31850887 95552661 286657983 350359757 605166853 1051079271 1815500559 3153237813 5446501677 6656835383 11434468433 19970506149 34303405299 59911518447 102910215897 125779152763 217254900227 377337458289 651764700681 1132012374867 1955294102043 2389803902497 7169411707491 21508235122473
• Sum of all divisors σ(n): 35774917401600
• Sum of proper divisors (its aliquot sum) s(n): 14266682279127
• 21508235122473 is a deficient number, because the sum of its proper divisors (14266682279127) is less than itself. Its deficiency is 7241552843346

Bases of 21508235122473

• Binary: 100111000111111000110101101101101011100101001₂
• Hexadecimal: 0x138FC6B6D729
• Base-36: 7MGQVV609

Squares and roots of 21508235122473

• 21508235122473 squared (21508235122473²) is 462604178083581145309635729
• 21508235122473 cubed (21508235122473³) is 9949799430860034417319226633235331637817
• The square root of 21508235122473 is 4637697.1788240983
• The cube root of 21508235122473 is 27810.0386095165

Scales and comparisons

• 21,508,235,122,473 seconds is equal to 683,895 years, 18 weeks, 12 hours, 14 minutes, 33 seconds.
• To count from 1 to 21,508,235,122,473 would take you about one million, seven hundred nine thousand, seven 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 21508235122473 cubic inches would be around 2317.5 feet tall.

Recreational maths with 21508235122473

• 21508235122473 backwards is 37422153280512
• The number of decimal digits it has is: 14
• The sum of 21508235122473's digits is 45
• More coming soon!