21129016995216

Names of 21129016995216

• Cardinal: 21129016995216 can be written as Twenty-one trillion, one hundred twenty-nine billion, sixteen million, nine hundred ninety-five thousand, two hundred sixteen.

Scientific notation

• Scientific notation: 2.1129016995216 × 10¹³

Factors of 21129016995216

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 198015266

Divisors of 21129016995216

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 19 24 26 27 36 38 39 48 52 54 57 72 76 78 104 108 114 117 144 152 156 171 208 216 228 234 247 304 312 342 351 432 456 468 494 513 624 684 702 741 912 936 988 1026 1368 1404 1482 1872 1976 2052 2223 2736 2808 2964 3952 4104 4446 5616 5928 6669 8208 8892 11856 13338 17784 26676 35568 53352 106704 198015229 396030458 594045687 792060916 1188091374 1584121832 1782137061 2376182748 2574197977 3168243664 3564274122 3762289351 4752365496 5148395954 5346411183 7128548244 7524578702 7722593931 9504730992 10296791908 10692822366 11286868053 14257096488 15049157404 15445187862 20593583816 21385644732 22573736106 23167781793 28514192976 30098314808 30890375724 33860604159 41187167632 42771289464 45147472212 46335563586 48909761563 60196629616 61780751448 67721208318 69503345379 85542578928 90294944424 92671127172 97819523126 101581812477 123561502896 135442416636 139006690758 146729284689 180589888848 185342254344 195639046252 203163624954 270884833272 278013381516 293458569378 370684508688 391278092504 406327249908 440187854067 541769666544 556026763032 586917138756 782556185008 812654499816 880375708134 1112053526064 1173834277512 1320563562201 1625308999632 1760751416268 2347668555024 2641127124402 3521502832536 5282254248804 7043005665072 10564508497608 21129016995216
• Sum of all divisors σ(n): 68750887856000
• Sum of proper divisors (its aliquot sum) s(n): 47621870860784
• 21129016995216 is an abundant number, because the sum of its proper divisors (47621870860784) is greater than itself. Its abundance is 26492853865568

Bases of 21129016995216

• Binary: 100110011011101111011100011010110110110010000₂
• Hexadecimal: 0x13377B8D6D90
• Base-36: 7HMJB6MC0

Squares and roots of 21129016995216

• 21129016995216 squared (21129016995216²) is 446435359184126565366886656
• 21129016995216 cubed (21129016995216³) is 9432740291466769571451697902981966237696
• The square root of 21129016995216 is 4596631.0484109991
• The cube root of 21129016995216 is 27645.6261515829

Scales and comparisons

• 21,129,016,995,216 seconds is equal to 671,837 years, 19 weeks, 6 days, 19 hours, 33 minutes, 36 seconds.
• To count from 1 to 21,129,016,995,216 would take you about one million, six hundred seventy-nine thousand, five hundred ninety-three 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 21129016995216 cubic inches would be around 2303.8 feet tall.

Recreational maths with 21129016995216

• 21129016995216 backwards is 61259961092112
• 21129016995216 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21129016995216's digits is 54
• More coming soon!