18155249203728

Names of 18155249203728

• Cardinal: 18155249203728 can be written as Eighteen trillion, one hundred fifty-five billion, two hundred forty-nine million, two hundred three thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.8155249203728 × 10¹³

Factors of 18155249203728

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 128

Divisors of 18155249203728

• Number of divisors d(n): 440
• Complete list of divisors:
  1 2 3 4 6 7 8 12 13 14 16 21 24 26 28 39 42 48 49 52 56 78 84 91 98 103 104 112 147 156 168 182 196 206 208 273 294 309 312 336 343 364 392 412 546 588 618 624 637 686 721 728 784 824 1029 1092 1176 1236 1274 1339 1372 1442 1456 1648 1911 2058 2163 2184 2352 2401 2472 2548 2678 2744 2884 3822 4017 4116 4326 4368 4459 4802 4944 5047 5096 5356 5488 5768 7203 7644 8034 8232 8652 8918 9373 9604 10094 10192 10712 11536 13377 14406 15141 15288 16068 16464 16807 17304 17836 18746 19208 20188 21424 26754 28119 28812 30282 30576 31213 32136 33614 34608 35329 35672 37492 38416 40376 50421 53508 56238 57624 60564 62426 64272 65611 67228 70658 71344 74984 80752 93639 100842 105987 107016 112476 115248 117649 121128 124852 131222 134456 141316 149968 187278 196833 201684 211974 214032 218491 224952 235298 242256 247303 249704 262444 268912 282632 352947 374556 393666 403368 423948 436982 449904 459277 470596 494606 499408 524888 565264 655473 705894 741909 749112 787332 806736 823543 847896 873964 918554 941192 989212 1049776 1310946 1377831 1411788 1483818 1498224 1529437 1574664 1647086 1695792 1731121 1747928 1837108 1882384 1978424 2470629 2621892 2755662 2823576 2967636 3058874 3149328 3214939 3294172 3462242 3495856 3674216 3956848 4588311 4941258 5193363 5243784 5511324 5647152 5764801 5935272 6117748 6429878 6588344 6924484 7348432 9176622 9644817 9882516 10386726 10487568 10706059 11022648 11529602 11870544 12117847 12235496 12859756 13176688 13848968 17294403 18353244 19289634 19765032 20773452 21412118 22045296 22504573 23059204 24235694 24470992 25719512 27697936 32118177 34588806 36353541 36706488 38579268 39530064 40353607 41546904 42824236 45009146 46118408 48471388 51439024 64236354 67513719 69177612 72707082 73412976 74942413 77158536 80707214 83093808 84824929 85648472 90018292 92236816 96942776 121060821 128472708 135027438 138355224 145414164 149884826 154317072 157532011 161414428 169649858 171296944 180036584 193885552 224827239 242121642 254474787 256945416 270054876 276710448 282475249 290828328 299769652 315064022 322828856 339299716 360073168 449654478 472596033 484243284 508949574 513890832 524596891 540109752 564950498 581656656 593774503 599539304 630128044 645657712 678599432 847425747 899308956 945192066 968486568 1017899148 1049193782 1080219504 1102724077 1129900996 1187549006 1199078608 1260256088 1357198864 1573790673 1694851494 1781323509 1798617912 1890384132 1936973136 2035798296 2098387564 2205448154 2259801992 2375098012 2520512176 3147581346 3308172231 3389702988 3562647018 3597235824 3672178237 3780768264 4071596592 4156421521 4196775128 4410896308 4519603984 4750196024 6295162692 6616344462 6779405976 7125294036 7344356474 7561536528 7719068539 8312843042 8393550256 8821792616 9500392048 11016534711 12469264563 12590325384 13232688924 13558811952 14250588072 14688712948 15438137078 16625686084 17643585232 22033069422 23157205617 24938529126 25180650768 26465377848 28501176144 29094950647 29377425896 30876274156 33251372168 44066138844 46314411234 49877058252 52930755696 54033479773 58189901294 58754851792 61752548312 66502744336 87284851941 88132277688 92628822468 99754116504 108066959546 116379802588 123505096624 162100439319 174569703882 176264555376 185257644936 199508233008 216133919092 232759605176 324200878638 349139407764 370515289872 378234358411 432267838184 465519210352 648401757276 698278815528 756468716822 864535676368 1134703075233 1296803514552 1396557631056 1512937433644 2269406150466 2593607029104 3025874867288 4538812300932 6051749734576 9077624601864 18155249203728
• Sum of all divisors σ(n): 59499079884608
• Sum of proper divisors (its aliquot sum) s(n): 41343830680880
• 18155249203728 is an abundant number, because the sum of its proper divisors (41343830680880) is greater than itself. Its abundance is 23188581477152

Bases of 18155249203728

• Binary: 100001000001100011001001011011111101000010000₂
• Hexadecimal: 0x1083192DFA10
• Base-36: 6FOEMMD5C

Squares and roots of 18155249203728

• 18155249203728 squared (18155249203728²) is 329613073649466178049097984
• 18155249203728 cubed (18155249203728³) is 5984207492912809448018153646504650084352
• The square root of 18155249203728 is 4260897.6992798125
• The cube root of 18155249203728 is 26282.5442843173

Scales and comparisons

• 18,155,249,203,728 seconds is equal to 577,280 years, 39 weeks, 6 days, 2 hours, 48 minutes, 48 seconds.
• To count from 1 to 18,155,249,203,728 would take you about one million, four hundred forty-three thousand, two hundred 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 18155249203728 cubic inches would be around 2190.2 feet tall.

Recreational maths with 18155249203728

• 18155249203728 backwards is 82730294255181
• The number of decimal digits it has is: 14
• The sum of 18155249203728's digits is 57
• More coming soon!