18291068321940

Names of 18291068321940

• Cardinal: 18291068321940 can be written as Eighteen trillion, two hundred ninety-one billion, sixty-eight million, three hundred twenty-one thousand, nine hundred forty.

Scientific notation

• Scientific notation: 1.829106832194 × 10¹³

Factors of 18291068321940

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 36538

Divisors of 18291068321940

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 29 30 36 45 58 60 87 90 116 131 145 174 180 261 262 290 348 393 435 522 524 580 655 751 786 870 1044 1179 1305 1310 1502 1572 1740 1965 2253 2358 2610 2620 3004 3755 3799 3930 4506 4716 5220 5895 6759 7510 7598 7860 9012 11265 11397 11790 13518 15020 15196 18995 21779 22530 22794 23580 27036 33795 34191 35617 37990 43558 45060 45588 56985 65337 67590 68382 71234 75980 87116 98381 106851 108895 113970 130674 135180 136764 142468 170955 178085 196011 196762 213702 217790 227940 261348 295143 320553 326685 341910 356170 392022 393524 427404 435580 491905 534255 590286 641106 653370 683820 712340 784044 885429 980055 983810 1032893 1068510 1180572 1282212 1306740 1475715 1602765 1770858 1960110 1967620 2065786 2137020 2853049 2951430 3098679 3205530 3541716 3920220 4131572 4427145 4665827 5164465 5706098 5902860 6197358 6411060 8559147 8854290 9296037 9331654 10328930 11412196 12394716 13997481 14265245 15493395 17118294 17708580 18592074 18663308 20657860 23329135 25677441 26748367 27994962 28530490 30986790 34236588 37184148 41992443 42795735 46480185 46658270 51354882 53496734 55989924 57060980 61973580 69987405 80245101 83984886 85591470 92960370 93316540 102709764 106993468 128387205 133741835 135308983 139974810 160490202 167969772 171182940 185920740 209962215 240735303 256774410 267483670 270617966 279949620 320980404 401225505 405926949 419924430 481470606 513548820 534967340 541235932 676544915 775702643 802451010 811853898 839848860 962941212 1203676515 1217780847 1353089830 1551405286 1604902020 1623707796 2029634745 2327107929 2407353030 2435561694 2706179660 3102810572 3504036077 3878513215 4059269490 4654215858 4814706060 4871123388 6088904235 6981323787 7008072154 7757026430 8118538980 9308431716 10512108231 11635539645 12177808470 13962647574 14016144308 15514052860 17520180385 21024216462 23271079290 24355616940 27925295148 31536324693 34906618935 35040360770 42048432924 46542158580 52560541155 63072649386 69813237870 70080721540 101617046233 105121082310 126145298772 139626475740 157681623465 203234092466 210242164620 304851138699 315363246930 406468184932 508085231165 609702277398 630726493860 914553416097 1016170462330 1219404554796 1524255693495 1829106832194 2032340924660 3048511386990 3658213664388 4572767080485 6097022773980 9145534160970 18291068321940
• Sum of all divisors σ(n): 57912884789760
• Sum of proper divisors (its aliquot sum) s(n): 39621816467820
• 18291068321940 is an abundant number, because the sum of its proper divisors (39621816467820) is greater than itself. Its abundance is 21330748145880

Bases of 18291068321940

• Binary: 100001010001010111000101000010100000010010100₂
• Hexadecimal: 0x10A2B8A14094
• Base-36: 6HESTTFH0

Squares and roots of 18291068321940

• 18291068321940 squared (18291068321940²) is 334563180357876967485363600
• 18291068321940 cubed (18291068321940³) is 6119517989931462232323485524562757384000
• The square root of 18291068321940 is 4276805.8550675409
• The cube root of 18291068321940 is 26347.9212855551

Scales and comparisons

• 18,291,068,321,940 seconds is equal to 581,599 years, 20 weeks, 3 days, 15 hours, 39 minutes.
• To count from 1 to 18,291,068,321,940 would take you about one million, four hundred fifty-three thousand, nine hundred ninety-eight 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 18291068321940 cubic inches would be around 2195.7 feet tall.

Recreational maths with 18291068321940

• 18291068321940 backwards is 04912386019281
• The number of decimal digits it has is: 14
• The sum of 18291068321940's digits is 54
• More coming soon!