19721494134784

Names of 19721494134784

• Cardinal: 19721494134784 can be written as Nineteen trillion, seven hundred twenty-one billion, four hundred ninety-four million, one hundred thirty-four thousand, seven hundred eighty-four.

Scientific notation

• Scientific notation: 1.9721494134784 × 10¹³

Factors of 19721494134784

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 20
• Sum of prime factors: 1868

Divisors of 19721494134784

• Number of divisors d(n): 272
• Complete list of divisors:
  1 2 4 8 13 16 26 32 52 64 104 113 127 128 208 226 254 256 416 452 508 512 832 904 1016 1024 1469 1613 1651 1664 1808 2032 2048 2938 3226 3302 3328 3616 4064 4096 5876 6452 6604 6656 7232 8128 8192 11752 12904 13208 13312 14351 14464 16256 16384 20969 23504 25808 26416 26624 28702 28928 32512 32768 41938 47008 51616 52832 53248 57404 57856 65024 65536 83876 94016 103232 105664 106496 114808 115712 130048 167752 182269 186563 188032 204851 206464 211328 212992 229616 231424 260096 335504 364538 373126 376064 409702 412928 422656 425984 459232 462848 520192 671008 729076 746252 752128 819404 825856 845312 851968 918464 925696 1040384 1342016 1458152 1492504 1504256 1638808 1651712 1690624 1836928 1851392 2080768 2369497 2663063 2684032 2916304 2985008 3008512 3277616 3303424 3381248 3673856 3702784 4161536 4738994 5326126 5368064 5832608 5970016 6017024 6555232 6606848 6762496 7347712 7405568 8323072 9477988 10652252 10736128 11665216 11940032 12034048 13110464 13213696 13524992 14695424 18955976 21304504 21472256 23148163 23330432 23880064 24068096 26220928 26427392 27049984 29390848 37911952 42609008 42944512 46296326 46660864 47760128 48136192 52441856 52854784 54099968 58781696 75823904 85218016 85889024 92592652 93321728 95520256 96272384 104883712 105709568 108199936 117563392 151647808 170436032 171778048 185185304 186643456 191040512 209767424 235126784 300926119 303295616 340872064 343556096 370370608 373286912 382081024 419534848 470253568 601852238 606591232 681744128 687112192 740741216 746573824 764162048 839069696 940507136 1203704476 1213182464 1363488256 1374224384 1481482432 1493147648 1528324096 1678139392 2407408952 2426364928 2726976512 2962964864 2986295296 3056648192 3356278784 4814817904 4852729856 5453953024 5925929728 5972590592 6113296384 6712557568 9629635808 9705459712 10907906048 11851859456 11945181184 12226592768 13425115136 19259271616 19410919424 21815812096 23703718912 38518543232 38821838848 43631624192 47407437824 77037086464 77643677696 87263248384 94814875648 154074172928 155287355392 174526496768 189629751296 308148345856 379259502592 616296691712 758519005184 1232593383424 1517038010368 2465186766848 4930373533696 9860747067392 19721494134784
• Sum of all divisors σ(n): 43216839171072
• Sum of proper divisors (its aliquot sum) s(n): 23495345036288
• 19721494134784 is an abundant number, because the sum of its proper divisors (23495345036288) is greater than itself. Its abundance is 3773850901504

Bases of 19721494134784

• Binary: 100011110111111000100101001110000000000000000₂
• Hexadecimal: 0x11EFC4A70000
• Base-36: 6ZNXGEWHS

Squares and roots of 19721494134784

• 19721494134784 squared (19721494134784²) is 388937330908319712758726656
• 19721494134784 cubed (19721494134784³) is 7670425290306970974399915358416277602304
• The square root of 19721494134784 is 4440888.8901642203
• The cube root of 19721494134784 is 27017.5898800307

Scales and comparisons

• 19,721,494,134,784 seconds is equal to 627,082 years, 26 weeks, 3 days, 23 hours, 13 minutes, 4 seconds.
• To count from 1 to 19,721,494,134,784 would take you about one million, five hundred sixty-seven thousand, seven hundred six 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 19721494134784 cubic inches would be around 2251.5 feet tall.

Recreational maths with 19721494134784

• 19721494134784 backwards is 48743149412791
• 19721494134784 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 19721494134784's digits is 64
• More coming soon!