21664384672437

Names of 21664384672437

• Cardinal: 21664384672437 can be written as Twenty-one trillion, six hundred sixty-four billion, three hundred eighty-four million, six hundred seventy-two thousand, four hundred thirty-seven.

Scientific notation

• Scientific notation: 2.1664384672437 × 10¹³

Factors of 21664384672437

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1421

Divisors of 21664384672437

• Number of divisors d(n): 120
• Complete list of divisors:
  1 3 9 13 39 41 43 117 123 129 369 387 533 559 1321 1599 1677 1763 1849 3963 4797 5031 5289 5547 11889 15867 16641 17173 22919 24037 51519 54161 56803 68757 72111 75809 79507 154557 162483 170409 206271 216333 227427 238521 487449 511227 682281 704093 715563 738439 985517 1033591 2112279 2215317 2328923 2442529 2956551 3100773 3259787 3418801 6336837 6645951 6986769 7327587 8869653 9302319 9779361 10256403 20960307 21982761 29338083 30275999 30769209 31752877 42377231 44444413 90827997 95258631 100143689 105028747 127131693 133333239 140170841 272483991 285775893 300431067 315086241 381395079 399999717 420512523 901293201 945258723 1261537569 1301867957 1365373711 1822220933 3905603871 4096121133 4306178627 4516236121 5466662799 11716811613 12288363399 12918535881 13548708363 16399988397 38755607643 40646125089 55980322151 58711069573 167940966453 176133208719 185165680961 503822899359 528399626157 555497042883 1666491128649 2407153852493 7221461557479 21664384672437
• Sum of all divisors σ(n): 35370819178968
• Sum of proper divisors (its aliquot sum) s(n): 13706434506531
• 21664384672437 is a deficient number, because the sum of its proper divisors (13706434506531) is less than itself. Its deficiency is 7957950165906

Bases of 21664384672437

• Binary: 100111011010000100001111100111110001010110101₂
• Hexadecimal: 0x13B421F3E2B5
• Base-36: 7OGHB9XV9

Squares and roots of 21664384672437

• 21664384672437 squared (21664384672437²) is 469345563235323219787518969
• 21664384672437 cubed (21664384672437³) is 10168082826231647102864249295959988957453
• The square root of 21664384672437 is 4654501.5493000969
• The cube root of 21664384672437 is 27877.1765883087

Scales and comparisons

• 21,664,384,672,437 seconds is equal to 688,860 years, 21 weeks, 5 days, 23 hours, 13 minutes, 57 seconds.
• To count from 1 to 21,664,384,672,437 would take you about one million, seven hundred twenty-two thousand, one hundred fifty-one 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 21664384672437 cubic inches would be around 2323.1 feet tall.

Recreational maths with 21664384672437

• 21664384672437 backwards is 73427648346612
• The number of decimal digits it has is: 14
• The sum of 21664384672437's digits is 63
• More coming soon!