81673568368128

Names of 81673568368128

• Cardinal: 81673568368128 can be written as Eighty-one trillion, six hundred seventy-three billion, five hundred sixty-eight million, three hundred sixty-eight thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 8.1673568368128 × 10¹³

Factors of 81673568368128

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 446

Divisors of 81673568368128

• Number of divisors d(n): 540
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 22 24 32 33 36 44 48 64 66 72 88 96 99 128 132 137 144 176 192 198 256 264 274 288 293 352 384 396 411 512 528 548 576 586 704 768 792 822 879 1056 1096 1152 1172 1233 1408 1507 1536 1584 1644 1758 2112 2192 2304 2344 2466 2637 2816 3014 3168 3223 3288 3516 4224 4384 4521 4608 4688 4932 5274 5632 6028 6336 6446 6576 7032 8448 8768 9042 9376 9669 9864 10548 12056 12672 12892 13152 13563 14064 16896 17536 18084 18752 18769 19338 19728 21096 24112 25344 25784 26304 27126 28128 29007 35072 36168 37504 37538 38676 39456 40141 42192 48224 50688 51568 52608 54252 56256 56307 58014 70144 72336 75008 75076 77352 78912 80282 84384 85849 96448 103136 105216 108504 112512 112614 116028 120423 144672 150016 150152 154704 157824 160564 168768 168921 171698 192896 206272 206459 210432 217008 225024 225228 232056 240846 257547 289344 300304 309408 315648 321128 337536 337842 343396 361269 385792 412544 412918 434016 441551 450048 450456 464112 481692 515094 578688 600608 618816 619377 631296 642256 675072 675684 686792 722538 771584 772641 825088 825836 868032 883102 900912 928224 944339 963384 1030188 1157376 1201216 1237632 1238754 1284512 1324653 1350144 1351368 1373584 1445076 1545282 1650176 1651672 1736064 1766204 1801824 1856448 1858131 1888678 1926768 2060376 2314752 2402432 2475264 2477508 2569024 2649306 2702736 2747168 2833017 2890152 3090564 3303344 3472128 3532408 3603648 3712896 3716262 3777356 3853536 3973959 4120752 4804864 4950528 4955016 5138048 5298612 5405472 5494336 5499317 5666034 5780304 6181128 6606688 6944256 7064816 7207296 7425792 7432524 7554712 7707072 7947918 8241504 8499051 9609728 9910032 10276096 10597224 10810944 10988672 10998634 11332068 11560608 11761313 12362256 13213376 14129632 14414592 14851584 14865048 15109424 15414144 15895836 16483008 16497951 16998102 19820064 20552192 21194448 21621888 21977344 21997268 22664136 23121216 23522626 24724512 26426752 28259264 28829184 29730096 30218848 30828288 31791672 32966016 32995902 33996204 35283939 39640128 42388896 43243776 43954688 43994536 45328272 46242432 47045252 49449024 49493853 52853504 56518528 59460192 60437696 60492487 61656576 63583344 65932032 65991804 67992408 70567878 79280256 84777792 86487552 87989072 90656544 92484864 94090504 98898048 98987706 105707008 105851817 113037056 118920384 120875392 120984974 127166688 129374443 131864064 131983608 135984816 141135756 158560512 169555584 175978144 181313088 181477461 184969728 188181008 197796096 197975412 211703634 226074112 237840768 241750784 241969948 254333376 258748886 263967216 271969632 282271512 317121024 339111168 351956288 362626176 362954922 376362016 388123329 395592192 395950824 423407268 475681536 483501568 483939896 508666752 517497772 527934432 543939264 544432383 564543024 678222336 703912576 725252352 725909844 752724032 776246658 791901648 846814536 951363072 967879792 1017333504 1034995544 1055868864 1087878528 1088864766 1129086048 1164369987 1407825152 1450504704 1451819688 1505448064 1552493316 1583803296 1611299881 1693629072 1935759584 2034667008 2069991088 2111737728 2175757056 2177729532 2258172096 2328739974 2815650304 2903639376 3010896128 3104986632 3167606592 3222599762 3387258144 3871519168 4139982176 4223475456 4351514112 4355459064 4516344192 4657479948 4833899643 5807278752 6021792256 6209973264 6335213184 6445199524 6774516288 7743038336 8279964352 8446950912 8710918128 9032688384 9314959896 9667799286 11614557504 12419946528 12670426368 12890399048 13549032576 14501698929 15486076672 16559928704 17421836256 17724298691 18065376768 18629919792 19335598572 23229115008 24839893056 25340852736 25780798096 27098065152 29003397858 30972153344 33119857408 34843672512 35448597382 37259839584 38671197144 46458230016 49679786112 51561596192 53172896073 54196130304 58006795716 66239714816 69687345024 70897194764 74519679168 77342394288 92916460032 99359572224 103123192384 106345792146 116013591432 139374690048 141794389528 149039358336 154684788576 159518688219 198719144448 206246384768 212691584292 232027182864 278749380096 283588779056 298078716672 309369577152 319037376438 412492769536 425383168584 464054365728 567177558112 596157433344 618739154304 638074752876 824985539072 850766337168 928108731456 1134355116224 1237478308608 1276149505752 1701532674336 1856217462912 2268710232448 2474956617216 2552299011504 3403065348672 3712434925824 4537420464896 5104598023008 6806130697344 7424869851648 9074840929792 10209196046016 13612261394688 20418392092032 27224522789376 40836784184064 81673568368128
• Sum of all divisors σ(n): 259921885411188
• Sum of proper divisors (its aliquot sum) s(n): 178248317043060
• 81673568368128 is an abundant number, because the sum of its proper divisors (178248317043060) is greater than itself. Its abundance is 96574748674932

Bases of 81673568368128

• Binary: 10010100100100000011100000001111011011000000000₂
• Hexadecimal: 0x4A481C07B600
• Base-36: SY8BHUV40

Squares and roots of 81673568368128

• 81673568368128 squared (81673568368128²) is 6670571769983278616926224384
• 81673568368128 cubed (81673568368128³) is 544809399510233909522874328901699242033152
• The square root of 81673568368128 is 9037342.9927234697
• The cube root of 81673568368128 is 43387.0887514239

Scales and comparisons

• 81,673,568,368,128 seconds is equal to 2,596,966 years, 43 weeks, 5 days, 4 hours, 28 minutes, 48 seconds.
• To count from 1 to 81,673,568,368,128 would take you about six million, four hundred ninety-two thousand, four hundred seventeen 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 81673568368128 cubic inches would be around 3615.6 feet tall.

Recreational maths with 81673568368128

• 81673568368128 backwards is 82186386537618
• 81673568368128 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 81673568368128's digits is 72
• More coming soon!