18443540808

Names of 18443540808

• Cardinal: 18443540808 can be written as Eighteen billion, four hundred forty-three million, five hundred forty thousand, eight hundred eight.

Scientific notation

• Scientific notation: 1.8443540808 × 10¹⁰

Factors of 18443540808

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 137

Divisors of 18443540808

• Number of divisors d(n): 640
• Complete list of divisors:
  1 2 3 4 6 7 8 9 11 12 14 18 21 22 24 27 28 33 36 42 44 49 53 54 56 61 63 66 72 77 84 88 98 99 106 108 122 126 132 147 154 159 168 183 189 196 198 212 216 231 244 252 264 294 297 308 318 343 366 371 378 392 396 424 427 441 462 477 488 504 539 549 583 588 594 616 636 671 686 693 732 742 756 792 854 882 924 954 1029 1078 1098 1113 1166 1176 1188 1272 1281 1323 1342 1372 1386 1431 1464 1484 1512 1617 1647 1708 1749 1764 1848 1908 2013 2058 2079 2156 2196 2226 2332 2376 2401 2562 2597 2646 2684 2744 2772 2862 2968 2989 3087 3233 3234 3294 3339 3416 3498 3528 3773 3816 3843 4026 4081 4116 4158 4312 4392 4452 4664 4697 4802 4851 5124 5194 5247 5292 5368 5544 5724 5978 6039 6174 6466 6468 6588 6678 6996 7203 7546 7686 7791 8052 8162 8232 8316 8904 8967 9261 9394 9604 9699 9702 10017 10248 10388 10494 10584 11319 11448 11529 11956 12078 12243 12348 12932 12936 13176 13356 13992 14091 14406 14553 15092 15372 15582 15741 16104 16324 16632 17934 18117 18179 18522 18788 19208 19398 19404 20034 20776 20923 20988 21609 22631 22638 23058 23373 23912 24156 24486 24696 25864 26411 26712 26901 28182 28567 28812 29097 29106 30184 30744 31164 31482 32648 32879 33957 35563 35868 36234 36358 36729 37044 37576 38796 38808 40068 41846 41976 42273 43218 45262 45276 46116 46746 48312 48972 52822 53802 54537 56364 57134 57624 58194 58212 62328 62769 62964 64827 65758 67893 67914 70119 71126 71736 72468 72716 73458 74088 77592 79233 80136 80703 83692 84546 85701 86436 87291 90524 90552 92232 93492 97944 98637 101871 105644 106689 107604 109074 110187 112728 114268 116388 116424 125538 125928 126819 127253 129654 131516 135786 135828 140238 142252 144936 145432 146461 146916 158417 158466 161406 163611 167384 169092 171402 172872 174582 181048 186984 188307 197274 199969 203679 203742 211288 213378 215208 218148 220374 228536 230153 232776 237699 248941 251076 253638 254506 257103 259308 263032 271572 271656 280476 284504 292922 293832 295911 316834 316932 320067 322812 327222 338184 342804 349164 376614 381759 394548 399938 407358 407484 426756 436296 439383 440748 460306 475251 475398 490833 497882 502152 507276 509012 514206 518616 543144 560952 564921 585844 591822 599907 611037 633668 633864 640134 645624 654444 685608 690459 698328 713097 746823 753228 763518 771309 789096 799876 814716 814968 853512 878766 881496 887733 920612 950502 950796 960201 981666 995764 1014552 1018024 1028412 1108919 1129842 1145277 1171688 1183644 1199814 1222074 1267336 1280268 1308888 1318149 1380918 1399783 1425753 1426194 1493646 1506456 1527036 1542618 1599752 1611071 1629432 1742587 1757532 1775466 1799721 1841224 1901004 1901592 1920402 1963332 1991528 2056824 2071377 2217838 2240469 2259684 2290554 2367288 2399628 2444148 2560536 2636298 2761836 2799566 2851506 2852388 2987292 3054072 3085236 3222142 3326757 3435831 3485174 3515064 3550932 3599442 3802008 3840804 3926664 3954447 4142754 4199349 4277259 4435676 4480938 4519368 4581108 4799256 4833213 4888296 5227761 5272596 5399163 5523672 5599132 5703012 5704776 5974584 6170472 6214131 6444284 6653514 6721407 6871662 6970348 7101864 7198884 7681608 7762433 7908894 8285508 8398698 8554518 8871352 8961876 9162216 9666426 9980271 10455522 10545192 10798326 11198264 11406024 12198109 12428262 12598047 12888568 13307028 13442814 13743324 13940696 14397768 14499639 15524866 15683283 15817788 16571016 16797396 17109036 17923752 19332852 19960542 20911044 21596652 23287299 24396218 24856524 25196094 26614056 26885628 27486648 28999278 29940813 31049732 31366566 31635576 33594792 34218072 36594327 37794141 38665704 39921084 41822088 43193304 43498917 46574598 47049849 48792436 49713048 50392188 53771256 57998556 59881626 62099464 62733132 69861897 73188654 75588282 79842168 85386763 86997834 93149196 94099698 97584872 100784376 109782981 115997112 119763252 125466264 139723794 146377308 151176564 170773526 173995668 186298392 188199396 209585691 219565962 239526504 256160289 279447588 292754616 302353128 329348943 341547052 347991336 376398792 419171382 439131924 512320578 558895176 658697886 683094104 768480867 838342764 878263848 1024641156 1317395772 1536961734 1676685528 2049282312 2305442601 2634791544 3073923468 4610885202 6147846936 9221770404 18443540808
• Sum of all divisors σ(n): 67519785600
• Sum of proper divisors (its aliquot sum) s(n): 49076244792
• 18443540808 is an abundant number, because the sum of its proper divisors (49076244792) is greater than itself. Its abundance is 30632703984

Bases of 18443540808

• Binary: 10001001011010100100001100101001000₂
• Hexadecimal: 0x44B521948
• Base-36: 8H0T360

Squares and roots of 18443540808

• 18443540808 squared (18443540808²) is 340164197536361292864
• 18443540808 cubed (18443540808³) is 6273832258682452568768823194112
• The square root of 18443540808 is 135806.9983763723
• The cube root of 18443540808 is 2642.0929993169

Scales and comparisons

• 18,443,540,808 seconds is equal to 586 years, 23 weeks, 1 day, 21 hours, 46 minutes, 48 seconds.
• To count from 1 to 18,443,540,808 would take you about one thousand, one hundred seventy-two 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 18443540808 cubic inches would be around 220.2 feet tall.

Recreational maths with 18443540808

• 18443540808 backwards is 80804534481
• The number of decimal digits it has is: 11
• The sum of 18443540808's digits is 45
• More coming soon!