18131907120768

Names of 18131907120768

• Cardinal: 18131907120768 can be written as Eighteen trillion, one hundred thirty-one billion, nine hundred seven million, one hundred twenty thousand, seven hundred sixty-eight.

Scientific notation

• Scientific notation: 1.8131907120768 × 10¹³

Factors of 18131907120768

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 3923

Divisors of 18131907120768

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 49 54 56 63 64 72 84 96 98 108 112 126 128 144 147 168 189 192 196 216 224 252 288 294 336 343 378 384 392 432 441 448 504 576 588 672 686 756 784 864 882 896 1008 1029 1152 1176 1323 1344 1372 1512 1568 1728 1764 2016 2058 2352 2646 2688 2744 3024 3087 3136 3456 3528 3911 4032 4116 4704 5292 5488 6048 6174 6272 7056 7822 8064 8232 9261 9408 10584 10976 11733 12096 12348 14112 15644 16464 18522 18816 21168 21952 23466 24192 24696 27377 28224 31288 32928 35199 37044 42336 43904 46932 49392 54754 56448 62576 65856 70398 74088 82131 84672 93864 98784 105597 109508 125152 131712 140796 148176 164262 169344 187728 191639 197568 211194 219016 246393 250304 281592 296352 328524 375456 383278 395136 422388 438032 492786 500608 563184 574917 592704 657048 739179 750912 766556 844776 876064 985572 1126368 1149834 1185408 1314096 1341473 1478358 1501824 1533112 1689552 1724751 1752128 1971144 2252736 2299668 2628192 2682946 2956716 3066224 3379104 3449502 3504256 3942288 4024419 4505472 4599336 5174253 5256384 5365892 5913432 6132448 6758208 6899004 7884576 8048838 9198672 10348506 10512768 10731784 11826864 12073257 12264896 13516416 13798008 15295921 15769152 16097676 18397344 20697012 21463568 23653728 24146514 24529792 27596016 30591842 31538304 32195352 36219771 36794688 41394024 42927136 45887763 47307456 48293028 55192032 61183684 64390704 72439542 73589376 82788048 85854272 91775526 94614912 96586056 107071447 110384064 122367368 128781408 137663289 144879084 165576096 171708544 183551052 193172112 214142894 220768128 244734736 257562816 275326578 289758168 321214341 331152192 367102104 386344224 412989867 428285788 489469472 515125632 550653156 579516336 642428682 662304384 734204208 749500129 772688448 825979734 856571576 963643023 978938944 1101306312 1159032672 1284857364 1468408416 1499000258 1545376896 1651959468 1713143152 1927286046 1957877888 2202612624 2248500387 2318065344 2569714728 2890929069 2936816832 2998000516 3303918936 3426286304 3854572092 4405225248 4497000774 4636130688 5139429456 5246500903 5781858138 5873633664 5996001032 6607837872 6745501161 6852572608 7709144184 8810450496 8994001548 10278858912 10493001806 11563716276 11992002064 13215675744 13491002322 13705145216 15418288368 15739502709 17620900992 17988003096 20236503483 20557717824 20986003612 23127432552 23984004128 26431351488 26982004644 30836576736 31479005418 35976006192 40473006966 41115435648 41972007224 46254865104 47218508127 47968008256 52862702976 53964009288 61673153472 62958010836 71952012384 80946013932 83944014448 92509730208 94437016254 95936016512 107928018576 123346306944 125916021672 141655524381 143904024768 161892027864 167888028896 185019460416 188874032508 215856037152 251832043344 283311048762 287808049536 323784055728 335776057792 370038920832 377748065016 431712074304 503664086688 566622097524 647568111456 671552115584 755496130032 863424148608 1007328173376 1133244195048 1295136222912 1510992260064 2014656346752 2266488390096 2590272445824 3021984520128 4532976780192 6043969040256 9065953560384 18131907120768
• Sum of all divisors σ(n): 62423318640000
• Sum of proper divisors (its aliquot sum) s(n): 44291411519232
• 18131907120768 is an abundant number, because the sum of its proper divisors (44291411519232) is greater than itself. Its abundance is 26159504398464

Bases of 18131907120768

• Binary: 100000111110110101001111000100000111010000000₂
• Hexadecimal: 0x107DA9E20E80
• Base-36: 6FDOLCIO0

Squares and roots of 18131907120768

• 18131907120768 squared (18131907120768²) is 328766055836157303736909824
• 18131907120768 cubed (18131907120768³) is 5961155588882430499949446653853493624832
• The square root of 18131907120768 is 4258157.7144074877
• The cube root of 18131907120768 is 26271.2756895825

Scales and comparisons

• 18,131,907,120,768 seconds is equal to 576,538 years, 29 weeks, 1 day, 2 hours, 52 minutes, 48 seconds.
• To count from 1 to 18,131,907,120,768 would take you about one million, four hundred forty-one thousand, three hundred forty-six 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 18131907120768 cubic inches would be around 2189.3 feet tall.

Recreational maths with 18131907120768

• 18131907120768 backwards is 86702170913181
• 18131907120768 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18131907120768's digits is 54
• More coming soon!