21047863231642

Names of 21047863231642

• Cardinal: 21047863231642 can be written as Twenty-one trillion, forty-seven billion, eight hundred sixty-three million, two hundred thirty-one thousand, six hundred forty-two.

Scientific notation

• Scientific notation: 2.1047863231642 × 10¹³

Factors of 21047863231642

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 504

Divisors of 21047863231642

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 13 26 29 58 149 169 298 311 338 377 622 754 1937 3874 4043 4321 4901 8086 8642 9019 9802 18038 22201 25181 44402 46339 50362 52559 56173 92678 96721 105118 112346 117247 193442 234494 288613 577226 602407 643829 730249 1204814 1257373 1287658 1343831 1460498 1524211 2514746 2687662 2804909 3048422 3751969 5609818 6904511 7503938 7831291 8369777 13809022 14411429 15662582 16345849 16739554 17469803 28822858 32691698 34939606 36463817 72927634 89758643 108807101 179517286 187348577 200230819 217614202 227107439 374697154 400461638 417931441 454214878 474029621 835862882 948059242 1166862359 2147302921 2333724718 2435531501 2603000647 4294605842 4871063002 5206001294 5433108733 10866217466 27914937973 33839008411 55829875946 62271784709 67678016822 70630413529 124543569418 141260827058 362894193649 725788387298 809533201217 1619066402434 10523931615821 21047863231642
• Sum of all divisors σ(n): 35719882082010
• Sum of proper divisors (its aliquot sum) s(n): 14672018850368
• 21047863231642 is a deficient number, because the sum of its proper divisors (14672018850368) is less than itself. Its deficiency is 6375844381274

Bases of 21047863231642

• Binary: 100110010010010010110011010010100010010011010₂
• Hexadecimal: 0x13249669449A
• Base-36: 7GL96BTLM

Squares and roots of 21047863231642

• 21047863231642 squared (21047863231642²) is 443012546617907215750016164
• 21047863231642 cubed (21047863231642³) is 9324467491115136747483045738422776261288
• The square root of 21047863231642 is 4587795.0293841593
• The cube root of 21047863231642 is 27610.1863400245

Scales and comparisons

• 21,047,863,231,642 seconds is equal to 669,256 years, 49 weeks, 1 day, 3 hours, 27 minutes, 22 seconds.
• To count from 1 to 21,047,863,231,642 would take you about one million, six hundred seventy-three thousand, one hundred forty-two 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 21047863231642 cubic inches would be around 2300.8 feet tall.

Recreational maths with 21047863231642

• 21047863231642 backwards is 24613236874012
• The number of decimal digits it has is: 14
• The sum of 21047863231642's digits is 49
• More coming soon!