21400381275

Names of 21400381275

• Cardinal: 21400381275 can be written as Twenty-one billion, four hundred million, three hundred eighty-one thousand, two hundred seventy-five.

Scientific notation

• Scientific notation: 2.1400381275 × 10¹⁰

Factors of 21400381275

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 34485

Divisors of 21400381275

• Number of divisors d(n): 108
• Complete list of divisors:
  1 3 5 7 13 15 21 25 35 39 49 65 75 91 105 147 169 175 195 245 273 325 455 507 525 637 735 845 975 1183 1225 1365 1911 2275 2535 3185 3549 3675 4225 5915 6825 8281 9555 12675 15925 17745 24843 29575 34457 41405 47775 88725 103371 124215 172285 207025 241199 447941 516855 621075 723597 861425 1205995 1343823 1688393 2239705 2584275 3135587 3617985 5065179 5823233 6029975 6719115 8441965 9406761 11198525 15677935 17469699 18089925 21949109 25325895 29116165 33595575 40762631 42209825 47033805 65847327 78389675 87348495 109745545 122287893 126629475 145580825 203813155 235169025 285338417 329236635 436742475 548727725 611439465 856015251 1019065775 1426692085 1646183175 3057197325 4280076255 7133460425 21400381275
• Sum of all divisors σ(n): 44569493352
• Sum of proper divisors (its aliquot sum) s(n): 23169112077
• 21400381275 is an abundant number, because the sum of its proper divisors (23169112077) is greater than itself. Its abundance is 1768730802

Bases of 21400381275

• Binary: 10011111011100011111110011101011011₂
• Hexadecimal: 0x4FB8FE75B
• Base-36: 9TX8FVF

Squares and roots of 21400381275

• 21400381275 squared (21400381275²) is 457976318715370625625
• 21400381275 cubed (21400381275³) is 9800867835429849591310285171875
• The square root of 21400381275 is 146288.6915485951
• The cube root of 21400381275 is 2776.3475866975

Scales and comparisons

• 21,400,381,275 seconds is equal to 680 years, 24 weeks, 1 day, 14 hours, 21 minutes, 15 seconds.
• To count from 1 to 21,400,381,275 would take you about one thousand, three hundred sixty 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 21400381275 cubic inches would be around 231.4 feet tall.

Recreational maths with 21400381275

• 21400381275 backwards is 57218300412
• The number of decimal digits it has is: 11
• The sum of 21400381275's digits is 33
• More coming soon!