18538649073369216

Names of 18538649073369216

• Cardinal: 18538649073369216 can be written as Eighteen quadrillion, five hundred thirty-eight trillion, six hundred forty-nine billion, seventy-three million, three hundred sixty-nine thousand, two hundred sixteen.

Scientific notation

• Scientific notation: 1.8538649073369216 × 10¹⁶

Factors of 18538649073369216

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 35014628

Divisors of 18538649073369216

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 22 24 27 32 33 36 44 48 54 64 66 72 81 88 96 99 108 128 132 144 162 176 192 198 216 264 288 297 324 352 384 396 432 528 576 594 648 704 792 864 891 1056 1152 1188 1296 1408 1584 1728 1782 2112 2376 2592 3168 3456 3564 4224 4643 4752 5184 6336 7128 9286 9504 10368 12672 13929 14256 18572 19008 27858 28512 37144 38016 41787 51073 55716 57024 74288 83574 102146 111432 114048 125361 148576 153219 167148 204292 222864 250722 297152 306438 334296 376083 408584 445728 459657 501444 594304 612876 668592 752166 817168 891456 919314 1002888 1225752 1337184 1378971 1504332 1634336 1782912 1838628 2005776 2451504 2674368 2757942 3008664 3268672 3677256 4011552 4136913 4903008 5348736 5515884 6017328 6537344 7354512 8023104 8273826 9806016 11031768 12034656 14709024 16046208 16547652 19612032 22063536 24069312 29418048 33095304 35009969 44127072 48138624 58836096 66190608 70019938 88254144 105029907 132381216 140039876 176508288 210059814 264762432 280079752 315089721 385109659 420119628 529524864 560159504 630179442 770219318 840239256 945269163 1120319008 1155328977 1260358884 1540438636 1680478512 1890538326 2240638016 2310657954 2520717768 2835807489 3080877272 3360957024 3465986931 3781076652 4481276032 4621315908 5041435536 5671614978 6161754544 6721914048 6931973862 7562153304 9242631816 10082871072 10397960793 11343229956 12323509088 13443828096 13863947724 15124306608 18485263632 20165742144 20795921586 22686459912 24647018176 27727895448 30248613216 31193882379 36970527264 40331484288 41591843172 45372919824 49294036352 55455790896 60497226432 62387764758 73941054528 83183686344 90745839648 110911581792 120994452864 124775529516 147882109056 162551286067 166367372688 181491679296 221823163584 249551059032 325102572134 332734745376 362983358592 443646327168 487653858201 499102118064 650205144268 665469490752 975307716402 998204236128 1300410288536 1330938981504 1462961574603 1788064146737 1950615432804 1996408472256 2600820577072 2925923149206 3576128293474 3901230865608 3992816944512 4388884723809 5201641154144 5364192440211 5851846298412 7152256586948 7802461731216 8777769447618 10403282308288 10728384880422 11703692596824 13166654171427 14304513173896 15604923462432 16092577320633 17555538895236 20806564616576 21456769760844 23407385193648 26333308342854 28609026347792 31209846924864 32185154641266 35111077790472 42913539521688 46814770387296 48277731961899 52666616685708 57218052695584 62419693849728 64370309282532 70222155580944 85827079043376 93629540774592 96555463923798 105333233371416 114436105391168 128740618565064 140444311161888 144833195885697 171654158086752 187259081549184 193110927847596 210666466742832 228872210782336 257481237130128 280888622323776 289666391771394 343308316173504 386221855695192 421332933485664 514962474260256 561777244647552 579332783542788 686616632347008 772443711390384 842665866971328 1029924948520512 1158665567085576 1544887422780768 1685331733942656 2059849897041024 2317331134171152 3089774845561536 4634662268342304 6179549691123072 9269324536684608 18538649073369216
• Sum of all divisors σ(n): 60199203689776800
• Sum of proper divisors (its aliquot sum) s(n): 41660554616407584
• 18538649073369216 is an abundant number, because the sum of its proper divisors (41660554616407584) is greater than itself. Its abundance is 23121905543038368

Bases of 18538649073369216

• Binary: 1000001110111001100110110011000101000100100000010000000₂
• Hexadecimal: 0x41DCCD98A24080
• Base-36: 52JEHT8JS00

Squares and roots of 18538649073369216

• 18538649073369216 squared (18538649073369216²) is 343681509465533291041409856454656
• 18538649073369216 cubed (18538649073369216³) is 6371390896987342183614298379561316702494650269696
• The square root of 18538649073369216 is 136156707.7795626491
• The cube root of 18538649073369216 is 264662.6730705347

Scales and comparisons

• 18,538,649,073,369,216 seconds is equal to 589,471,696 years, 37 weeks, 5 days, 10 hours, 33 minutes, 36 seconds.
• To count from 1 to 18,538,649,073,369,216 would take you about one billion, seven hundred sixty-eight million, four hundred fifteen thousand and ninety 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 18538649073369216 cubic inches would be around 22055.2 feet tall.

Recreational maths with 18538649073369216

• 18538649073369216 backwards is 61296337094683581
• 18538649073369216 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 18538649073369216's digits is 81
• More coming soon!