21328187573

Names of 21328187573

• Cardinal: 21328187573 can be written as Twenty-one billion, three hundred twenty-eight million, one hundred eighty-seven thousand, five hundred seventy-three.

Scientific notation

• Scientific notation: 2.1328187573 × 10¹⁰

Factors of 21328187573

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 124

Divisors of 21328187573

• Number of divisors d(n): 72
• Complete list of divisors:
  1 7 11 17 77 89 119 121 187 289 623 847 979 1309 1331 1513 2023 2057 3179 6853 7921 9317 10591 10769 14399 16643 22253 22627 25721 34969 55447 75383 87131 116501 118459 134657 158389 180047 183073 244783 282931 384659 609917 829213 942599 958441 1281511 1481227 1980517 2013803 2289169 2692613 3112241 6709087 10368589 10542851 14096621 16024183 16293497 21785687 25180859 34234651 73799957 114054479 176266013 179228467 239642557 276989449 1254599269 1938926143 3046883939 21328187573
• Sum of all divisors σ(n): 28804223424
• Sum of proper divisors (its aliquot sum) s(n): 7476035851
• 21328187573 is a deficient number, because the sum of its proper divisors (7476035851) is less than itself. Its deficiency is 13852151722

Bases of 21328187573

• Binary: 10011110111010000100101000010110101₂
• Hexadecimal: 0x4F74250B5
• Base-36: 9SQ92UT

Squares and roots of 21328187573

• 21328187573 squared (21328187573²) is 454891585149071630329
• 21328187573 cubed (21328187573³) is 9702013053438700898469827701517
• The square root of 21328187573 is 146041.7322993671
• The cube root of 21328187573 is 2773.2220875371

Scales and comparisons

• 21,328,187,573 seconds is equal to 678 years, 8 weeks, 6 days, 32 minutes, 53 seconds.
• To count from 1 to 21,328,187,573 would take you about one thousand, three hundred fifty-six 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 21328187573 cubic inches would be around 231.1 feet tall.

Recreational maths with 21328187573

• 21328187573 backwards is 37578182312
• The number of decimal digits it has is: 11
• The sum of 21328187573's digits is 47
• More coming soon!