18909012490368

Names of 18909012490368

• Cardinal: 18909012490368 can be written as Eighteen trillion, nine hundred nine billion, twelve million, four hundred ninety thousand, three hundred sixty-eight.

Scientific notation

• Scientific notation: 1.8909012490368 × 10¹³

Factors of 18909012490368

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 22427

Divisors of 18909012490368

• Number of divisors d(n): 640
• Complete list of divisors:
  1 2 3 4 6 7 8 11 12 13 14 16 21 22 24 26 28 32 33 39 42 44 48 52 56 64 66 77 78 84 88 91 96 104 112 128 132 143 154 156 168 169 176 182 192 208 224 231 264 273 286 308 312 336 338 352 364 384 416 429 448 462 507 528 546 572 616 624 672 676 704 728 832 858 896 924 1001 1014 1056 1092 1144 1183 1232 1248 1344 1352 1408 1456 1664 1716 1848 1859 2002 2028 2112 2184 2197 2288 2366 2464 2496 2688 2704 2912 3003 3432 3549 3696 3718 4004 4056 4224 4368 4394 4576 4732 4928 4992 5408 5577 5824 6006 6591 6864 7098 7392 7436 8008 8112 8736 8788 9152 9464 9856 10816 11154 11648 12012 13013 13182 13728 14196 14784 14872 15379 16016 16224 17472 17576 18304 18928 21632 22308 22391 24024 24167 26026 26364 27456 28392 28561 29568 29744 30758 32032 32448 34944 35152 37856 39039 44616 44782 46137 48048 48334 52052 52728 54912 56784 57122 59488 61516 64064 64896 67173 70304 72501 75712 78078 85683 89232 89564 92274 96096 96668 104104 105456 113568 114244 118976 123032 128128 134346 140608 145002 151424 156156 156737 169169 171366 178464 179128 184548 192192 193336 199927 208208 210912 227136 228488 237952 246064 246301 268692 281216 290004 291083 312312 313474 314171 338338 342732 356928 358256 369096 384384 386672 399854 416416 421824 454272 456976 470211 492128 492602 507507 537384 580008 582166 599781 624624 626948 628342 676676 685464 713856 716512 738192 738903 773344 799708 832832 843648 873249 913952 940422 942513 984256 985204 1015014 1074768 1160016 1164332 1199562 1249248 1253896 1256684 1353352 1370928 1433024 1476384 1477806 1546688 1599416 1665664 1724107 1746498 1827904 1880844 1885026 1968512 1970408 2030028 2037581 2149536 2199197 2320032 2328664 2399124 2498496 2507792 2513368 2706704 2741856 2866048 2952768 2955612 3093376 3198832 3201913 3448214 3492996 3655808 3761688 3770052 3784079 3940816 4060056 4075162 4299072 4398394 4640064 4657328 4798248 4996992 5015584 5026736 5172321 5413408 5483712 5905536 5911224 6112743 6397664 6403826 6597591 6896428 6985992 7523376 7540104 7568158 7881632 8120112 8150324 8598144 8796788 9280128 9314656 9596496 9605739 10031168 10053472 10344642 10826816 10967424 11352237 11822448 12225486 12795328 12807652 13195182 13792856 13971984 15046752 15080208 15136316 15763264 16240224 16300648 17593576 18629312 19192992 19211478 20062336 20106944 20689284 21653632 22413391 22704474 23644896 24450972 25590656 25615304 26390364 26488553 27585712 27943968 30093504 30160416 30272632 31526528 32480448 32601296 35187152 37258624 38385984 38422956 40213888 41378568 41624869 44826782 45408948 47289792 48901944 49193027 51230608 52780728 52977106 55171424 55887936 60187008 60320832 60545264 64960896 65202592 67240173 70374304 76771968 76845912 79465659 82757136 83249738 89653564 90817896 94579584 97803888 98386054 102461216 105561456 105954212 110342848 111775872 120641664 121090528 124874607 130405184 134480346 140748608 147579081 153691824 158931318 165514272 166499476 179307128 181635792 195607776 196772108 204922432 211122912 211908424 220685696 242181056 249749214 260810368 268960692 281497216 291374083 295158162 307383648 317862636 331028544 332998952 344351189 358614256 363271584 391215552 393544216 409844864 422245824 423816848 484362112 499498428 537921384 541123297 582748166 590316324 614767296 635725272 639509351 662057088 665997904 688702378 717228512 726543168 782431104 787088432 844491648 847633696 874122249 998996856 1033053567 1075842768 1082246594 1165496332 1180632648 1229534592 1271450544 1279018702 1331995808 1377404756 1434457024 1453086336 1574176864 1623369891 1695267392 1748244498 1918528053 1997993712 2066107134 2151685536 2164493188 2330992664 2361265296 2542901088 2558037404 2663991616 2754809512 2868914048 3148353728 3246739782 3390534784 3496488996 3787863079 3837056106 3995987424 4132214268 4303371072 4328986376 4476565457 4661985328 4722530592 5085802176 5116074808 5327983232 5509619024 6296707456 6493479564 6992977992 7034602861 7575726158 7674112212 7991974848 8264428536 8606742144 8657972752 8953130914 9323970656 9445061184 10171604352 10232149616 11019238048 11363589237 12986959128 13429696371 13985955984 14069205722 15151452316 15348224424 15983949696 16528857072 17315945504 17906261828 18647941312 18890122368 20464299232 21103808583 22038476096 22727178474 25973918256 26859392742 27971911968 28138411444 30302904632 30696448848 33057714144 34631891008 35812523656 37295882624 40928598464 42207617166 44076952192 45454356948 49242220027 51947836512 53718785484 55943823936 56276822888 60605809264 61392897696 66115428288 69263782016 71625047312 81857196928 84415234332 90908713896 98484440054 103895673024 107437570968 111887647872 112553645776 121211618528 122785795392 132230856576 143250094624 147726660081 168830468664 181817427792 196968880108 207791346048 214875141936 225107291552 242423237056 245571590784 286500189248 295453320162 337660937328 363634855584 393937760216 429750283872 450214583104 484846474112 573000378496 590906640324 675321874656 727269711168 787875520432 859500567744 900429166208 1181813280648 1350643749312 1454539422336 1575751040864 1719001135488 2363626561296 2701287498624 3151502081728 4727253122592 6303004163456 9454506245184 18909012490368
• Sum of all divisors σ(n): 67841998986240
• Sum of proper divisors (its aliquot sum) s(n): 48932986495872
• 18909012490368 is an abundant number, because the sum of its proper divisors (48932986495872) is greater than itself. Its abundance is 30023974005504

Bases of 18909012490368

• Binary: 100010011001010011000111110001111100010000000₂
• Hexadecimal: 0x113298F8F880
• Base-36: 6PAOHTJEO

Squares and roots of 18909012490368

• 18909012490368 squared (18909012490368²) is 357550753360893033292775424
• 18909012490368 cubed (18909012490368³) is 6760931661241614521323884955432787116032
• The square root of 18909012490368 is 4348449.4351858341
• The cube root of 18909012490368 is 26641.3533616129

Scales and comparisons

• 18,909,012,490,368 seconds is equal to 601,248 years, 5 weeks, 4 days, 5 hours, 32 minutes, 48 seconds.
• To count from 1 to 18,909,012,490,368 would take you about one million, five hundred three thousand, one hundred twenty 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 18909012490368 cubic inches would be around 2220.1 feet tall.

Recreational maths with 18909012490368

• 18909012490368 backwards is 86309421090981
• The number of decimal digits it has is: 14
• The sum of 18909012490368's digits is 60
• More coming soon!