18690843636946728

Names of 18690843636946728

• Cardinal: 18690843636946728 can be written as Eighteen quadrillion, six hundred ninety trillion, eight hundred forty-three billion, six hundred thirty-six million, nine hundred forty-six thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.8690843636946728 × 10¹⁶

Factors of 18690843636946728

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 83688

Divisors of 18690843636946728

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 18 24 26 27 36 39 52 54 72 78 81 104 108 117 156 162 216 234 243 312 324 331 351 468 486 648 662 702 729 936 972 993 1053 1324 1404 1458 1944 1986 2106 2187 2648 2808 2916 2979 3159 3972 4212 4303 4374 5832 5958 6318 6561 7944 8424 8606 8748 8937 9477 11916 12636 12909 13122 17212 17496 17874 18954 19683 23832 25272 25818 26244 26811 28431 34424 35748 37908 38727 39366 51636 52488 53622 56862 71496 75816 77454 78732 80433 83339 85293 103272 107244 109561 113724 116181 154908 157464 160866 166678 170586 214488 219122 227448 232362 241299 250017 255879 309816 321732 328683 333356 341172 348543 438244 464724 482598 500034 511758 643464 657366 666712 682344 697086 723897 750051 876488 929448 965196 986049 1000068 1023516 1045629 1083407 1314732 1394172 1424293 1447794 1500102 1930392 1972098 2000136 2047032 2091258 2166814 2171691 2250153 2629464 2788344 2848586 2895588 2958147 3000204 3136887 3250221 3944196 4182516 4272879 4333628 4343382 4500306 5697172 5791176 5916294 6000408 6273774 6500442 6515073 6750459 7888392 8365032 8545758 8667256 8686764 8874441 9000612 9410661 9750663 11394344 11832588 12547548 12818637 13000884 13030146 13500918 17091516 17373528 17748882 18001224 18821322 19501326 20251377 23665176 25095096 25637274 26001768 26060292 26623323 27001836 27585209 28231983 29251989 34183032 35497764 37642644 38455911 39002652 40502754 51274548 52120584 53246646 54003672 55170418 56463966 58503978 60754131 70995528 75285288 76911822 78005304 79869969 81005508 82755627 84695949 87755967 102549096 106493292 110340836 112927932 115367733 117007956 121508262 153823644 159739938 162011016 165511254 169391898 175511934 182262393 212986584 220681672 225855864 230735466 234015912 239609907 243016524 248266881 263267901 307647288 319479876 331022508 338783796 346103199 351023868 358607717 364524786 461470932 479219814 486033048 496533762 526535802 546787179 638959752 662045016 677567592 692206398 702047736 717215434 718829721 729049572 744800643 789803703 922941864 958439628 993067524 1038309597 1053071604 1075823151 1093574358 1384412796 1434430868 1437659442 1458099144 1489601286 1579607406 1640361537 1916879256 1986135048 2076619194 2106143208 2151646302 2156489163 2187148716 2234401929 2369411109 2768825592 2868861736 2875318884 2979202572 3114928791 3159214812 3227469453 3280723074 4153238388 4303292604 4312978326 4374297432 4468803858 4738822218 5750637768 5958405144 6229857582 6318429624 6454938906 6561446148 6703205787 7108233327 8306476776 8606585208 8625956652 8937607716 9130704179 9344786373 9477644436 9682408359 12459715164 12909877812 13122892296 13406411574 14216466654 17251913304 17875215432 18261408358 18689572746 18955288872 19364816718 20109617361 21324699981 24919430328 25819755624 26812823148 27392112537 28034359119 28432933308 29047225077 36522816716 37379145492 38729633436 40219234722 42649399962 53625646296 54784225074 56068718238 56865866616 58094450154 60328852083 73045633432 74758290984 77459266872 80438469444 82176337611 85298799924 87141675231 109568450148 112137436476 116188900308 118699154327 120657704166 160876938888 164352675222 170597599848 174283350462 180986556249 219136900296 224274872952 232377800616 237398308654 241315408332 246529012833 261425025693 328705350444 348566700924 356097462981 361973112498 474796617308 482630816664 493058025666 522850051386 542959668747 657410700888 697133401848 712194925962 723946224996 739587038499 784275077079 949593234616 986116051332 1045700102772 1068292388943 1085919337494 1424389851924 1447892449992 1479174076998 1568550154158 1972232102664 2091400205544 2136584777886 2171838674988 2218761115497 2352825231237 2848779703848 2958348153996 3137100308316 3204877166829 4273169555772 4343677349976 4437522230994 4705650462474 5916696307992 6274200616632 6409754333658 6656283346491 7058475693711 8546339111544 8875044461988 9411300924948 9614631500487 12819508667316 13312566692982 14116951387422 17750088923976 18822601849896 19229263000974 19968850039473 25639017334632 26625133385964 28233902774844 28843894501461 38458526001948 39937700078946 53250266771928 56467805549688 57687789002922 59906550118419 76917052003896 79875400157892 86531683504383 115375578005844 119813100236838 159750800315784 173063367008766 179719650355257 230751156011688 239626200473676 259595050513149 346126734017532 359439300710514 479252400947352 519190101026298 692253468035064 718878601421028 778785151539447 1038380202052596 1437757202842056 1557570303078894 2076760404105192 2336355454618341 3115140606157788 4672710909236682 6230281212315576 9345421818473364 18690843636946728
• Sum of all divisors σ(n): 56782958583304800
• Sum of proper divisors (its aliquot sum) s(n): 38092114946358072
• 18690843636946728 is an abundant number, because the sum of its proper divisors (38092114946358072) is greater than itself. Its abundance is 19401271309411344

Bases of 18690843636946728

• Binary: 1000010011001110011100100100111100010000101011100101000₂
• Hexadecimal: 0x42673927885728
• Base-36: 541CN125MI0

Squares and roots of 18690843636946728

• 18690843636946728 squared (18690843636946728²) is 349347635860791990524542309905984
• 18690843636946728 cubed (18690843636946728³) is 6529602036811066546618629814524319696690496420352
• The square root of 18690843636946728 is 136714460.2335346529
• The cube root of 18690843636946728 is 265384.9567698407

Scales and comparisons

• 18,690,843,636,946,728 seconds is equal to 594,311,013 years, 4 weeks, 22 hours, 58 minutes, 48 seconds.
• To count from 1 to 18,690,843,636,946,728 would take you about one billion, seven hundred eighty-two million, nine hundred thirty-three thousand and thirty-nine 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 18690843636946728 cubic inches would be around 22115.4 feet tall.

Recreational maths with 18690843636946728

• 18690843636946728 backwards is 82764963634809681
• The number of decimal digits it has is: 17
• The sum of 18690843636946728's digits is 90
• More coming soon!