20917917579321

Names of 20917917579321

• Cardinal: 20917917579321 can be written as Twenty trillion, nine hundred seventeen billion, nine hundred seventeen million, five hundred seventy-nine thousand, three hundred twenty-one.

Scientific notation

• Scientific notation: 2.0917917579321 × 10¹³

Factors of 20917917579321

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 3467

Divisors of 20917917579321

• Number of divisors d(n): 105
• Complete list of divisors:
  1 3 7 9 21 27 49 63 81 147 189 243 343 441 567 729 1029 1323 1701 2401 3087 3457 3969 5103 7203 9261 10371 11907 21609 24199 27783 31113 35721 64827 72597 83349 93339 169393 194481 217791 250047 280017 508179 583443 653373 840051 1185751 1524537 1750329 1960119 2520153 3557253 4573611 5880357 8300257 10671759 11950849 13720833 17641071 24900771 32015277 35852547 41162499 74702313 83655943 96045831 107557641 123487497 224106939 250967829 288137493 322672923 585591601 672320817 752903487 864412479 968018769 1756774803 2016962451 2258710461 2904056307 4099141207 5270324409 6050887353 6776131383 8712168921 12297423621 15810973227 20328394149 28693988449 36892270863 47432919681 60985182447 86081965347 110676812589 142298759043 258245896041 332030437767 426896277129 774737688123 996091313301 2324213064369 2988273939903 6972639193107 20917917579321
• Sum of all divisors σ(n): 36598027200351
• Sum of proper divisors (its aliquot sum) s(n): 15680109621030
• 20917917579321 is a deficient number, because the sum of its proper divisors (15680109621030) is less than itself. Its deficiency is 5237807958291

Bases of 20917917579321

• Binary: 100110000011001010101000010111111100000111001₂
• Hexadecimal: 0x1306550BF839
• Base-36: 7EXK41IK9

Squares and roots of 20917917579321

• 20917917579321 squared (20917917579321²) is 437559275855266524326821041
• 20917917579321 cubed (20917917579321³) is 9152828868407846416495781549029889293161
• 20917917579321 is a perfect square number. Its square root is 4573611
• The cube root of 20917917579321 is 27553.2489273189

Scales and comparisons

• 20,917,917,579,321 seconds is equal to 665,125 years, 3 weeks, 6 days, 12 hours, 55 minutes, 21 seconds.
• To count from 1 to 20,917,917,579,321 would take you about one million, six hundred sixty-two thousand, eight hundred twelve 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 20917917579321 cubic inches would be around 2296.1 feet tall.

Recreational maths with 20917917579321

• 20917917579321 backwards is 12397571971902
• 20917917579321 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 20917917579321's digits is 63
• More coming soon!