67438879999220961

Names of 67438879999220961

• Cardinal: 67438879999220961 can be written as Sixty-seven quadrillion, four hundred thirty-eight trillion, eight hundred seventy-nine billion, nine hundred ninety-nine million, two hundred twenty thousand, nine hundred sixty-one.

Scientific notation

• Scientific notation: 6.7438879999220961 × 10¹⁶

Factors of 67438879999220961

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 13900

Divisors of 67438879999220961

• Number of divisors d(n): 297
• Complete list of divisors:
  1 3 7 9 11 21 27 33 49 63 77 81 99 121 147 189 231 243 297 363 441 539 567 693 729 847 891 1089 1323 1617 1701 2079 2187 2541 2673 3267 3969 4851 5103 5929 6237 6561 7623 8019 9801 11907 13879 14553 15309 17787 18711 19683 22869 24057 29403 35721 41637 43659 45927 53361 56133 59049 68607 72171 88209 97153 107163 124911 130977 137781 152669 160083 168399 205821 216513 264627 291459 321489 374733 392931 413343 458007 480249 505197 617463 649539 680071 793881 874377 964467 1068683 1124199 1178793 1374021 1440747 1515591 1679359 1852389 2040213 2381643 2623131 2893401 3206049 3372597 3536379 4122063 4322241 4546773 5038077 5557167 6120639 7144929 7480781 7869393 9618147 10117791 10609137 11755513 12366189 12966723 15114231 16671501 18361917 22442343 23608179 28854441 30353373 31827411 35266539 37098567 38900169 45342693 50014503 55085751 67327029 70824537 82288591 86563323 91060119 105799617 111295701 116700507 136028079 165257253 192626641 201981087 212473611 246865773 259689969 273180357 317398851 333887103 350101521 408084237 495771759 577879923 605943261 637420833 740597319 779069907 819541071 952196553 1001661309 1224252711 1348386487 1487315277 1733639769 1817829783 1912262499 2118893051 2221791957 2337209721 2856589659 3004983927 3672758133 4045159461 4461945831 5200919307 5453489349 5736787497 6356679153 6665375871 7011629163 8569768977 9014951781 9438705409 11018274399 12135478383 13385837493 14832251357 15602757921 16360468047 19070037459 19996127613 21034887489 23307823561 25709306931 28316116227 33054823197 36406435149 40157512479 44496754071 46808273763 49081404141 57210112377 59988382839 63104662467 69923470683 77127920793 84948348681 99164469591 103825759499 109219305447 133490262213 140424821289 147244212423 163154764927 171630337131 179965148517 209770412049 231383762379 254845046043 311477278497 327657916341 400470786639 421274463867 441732637269 489464294781 514891011393 539895445551 629311236147 694151287137 764535138129 934431835491 982973749023 1142083354489 1201412359917 1263823391601 1468392884343 1544673034179 1619686336653 1887933708441 2293605414387 2803295506473 2948921247069 3426250063467 3604237079751 3791470174803 4405178653029 4634019102537 4859059009959 5663801125323 6880816243161 8409886519419 8846763741207 10278750190401 10812711239253 11374410524409 13215535959087 13902057307611 16991403375969 20642448729483 25229659558257 26540291223621 30836250571203 32438133717759 39646607877261 41706171922833 50974210127907 61927346188449 75688978674771 79620873670863 92508751713609 97314401153277 118939823631783 125118515768499 152922630383721 185782038565347 227066936024313 277526255140827 291943203459831 356819470895349 458767891151163 557346115696041 681200808072939 832578765422481 875829610379493 1070458412686047 1376303673453489 2043602424218817 2497736296267443 3211375238058141 6130807272656451 7493208888802329 9634125714174423 22479626666406987 67438879999220961
• Sum of all divisors σ(n): 129352699157186673
• Sum of proper divisors (its aliquot sum) s(n): 61913819157965712
• 67438879999220961 is a deficient number, because the sum of its proper divisors (61913819157965712) is less than itself. Its deficiency is 5525060841255249

Bases of 67438879999220961

• Binary: 11101111100101110100110111010110011001110101110011100001₂
• Hexadecimal: 0xEF974DD6675CE1
• Base-36: IG135RV9529

Squares and roots of 67438879999220961

• 67438879999220961 squared (67438879999220961²) is 4548002535549324964727966901763521
• 67438879999220961 cubed (67438879999220961³) is 306712197231063589030001781960805170489297048363681
• 67438879999220961 is a perfect square number. Its square root is 259689969
• The cube root of 67438879999220961 is 407039.7126323885

Scales and comparisons

• 67,438,879,999,220,961 seconds is equal to 2,144,347,781 years, 42 weeks, 5 days, 13 hours, 49 minutes, 21 seconds.
• To count from 1 to 67,438,879,999,220,961 would take you about six billion, four hundred thirty-three million, forty-three thousand, three hundred forty-five 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 67438879999220961 cubic inches would be around 33920 feet tall.

Recreational maths with 67438879999220961

• 67438879999220961 backwards is 16902299997883476
• 67438879999220961 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 67438879999220961's digits is 99
• More coming soon!