18391321741959

Names of 18391321741959

• Cardinal: 18391321741959 can be written as Eighteen trillion, three hundred ninety-one billion, three hundred twenty-one million, seven hundred forty-one thousand, nine hundred fifty-nine.

Scientific notation

• Scientific notation: 1.8391321741959 × 10¹³

Factors of 18391321741959

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 110

Divisors of 18391321741959

• Number of divisors d(n): 216
• Complete list of divisors:
  1 3 9 23 27 31 53 69 81 93 159 207 243 279 477 529 621 713 837 961 1219 1431 1587 1643 1863 2139 2511 2809 2883 3657 4293 4761 4929 5589 6417 7533 8427 8649 10971 12879 14283 14787 16399 19251 22103 25281 25947 28037 32913 37789 42849 44361 49197 50933 57753 64607 66309 75843 77841 84111 87079 98739 113367 128547 133083 147591 148877 152799 173259 193821 198927 227529 233523 252333 261237 296217 340101 399249 442773 446631 458397 508369 581463 596781 682587 756999 783711 869147 1020303 1171459 1328319 1339893 1375191 1485961 1525107 1744389 1790343 2002817 2270997 2351133 2607441 2699449 3060909 3424171 3514377 3984957 4019679 4125573 4457883 4575321 4615187 5233167 5371029 6008451 6812991 7053399 7822323 8098347 9182727 10272513 10543131 12059037 12376719 13373649 13725963 13845561 15699501 18025353 21160197 23466969 24295041 26943557 30817539 31629393 36177111 40120947 41177889 41536683 46064791 54076059 62087327 70400907 72885123 78755933 80830671 92452617 94888179 106149301 120362841 123533667 124610049 138194373 143070797 162228177 186261981 211202721 218655369 236267799 242492013 277357851 284664537 318447903 361088523 373830147 414583119 429212391 486684531 558785943 655966107 708803397 727476039 832073553 955343709 1121490441 1243749357 1287637173 1428008521 1676357829 2126410191 2182428117 2441433923 2866031127 3290628331 3731248071 3862911519 4284025563 5029073487 6379230573 6547284351 7324301769 8598093381 9871884993 11193744213 11588734557 12852076689 15087220461 19137691719 21972905307 25794280143 29615654979 34766203671 38556230067 65918715921 75684451613 88846964937 115668690201 197756147763 227053354839 266540894811 347006070603 593268443289 681160064517 799622684433 2043480193551 6130440580653 18391321741959
• Sum of all divisors σ(n): 30330239743440
• Sum of proper divisors (its aliquot sum) s(n): 11938918001481
• 18391321741959 is a deficient number, because the sum of its proper divisors (11938918001481) is less than itself. Its deficiency is 6452403740478

Bases of 18391321741959

• Binary: 100001011101000010000001100110000101010000111₂
• Hexadecimal: 0x10BA10330A87
• Base-36: 6IOUU45FR

Squares and roots of 18391321741959

• 18391321741959 squared (18391321741959²) is 338240715416253826181157681
• 18391321741959 cubed (18391321741959³) is 6220693823450715704304147682432172837079
• The square root of 18391321741959 is 4288510.4339337919
• The cube root of 18391321741959 is 26395.9712927429

Scales and comparisons

• 18,391,321,741,959 seconds is equal to 584,787 years, 7 weeks, 3 days, 3 hours, 52 minutes, 39 seconds.
• To count from 1 to 18,391,321,741,959 would take you about one million, four hundred sixty-one thousand, nine hundred sixty-seven 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 18391321741959 cubic inches would be around 2199.7 feet tall.

Recreational maths with 18391321741959

• 18391321741959 backwards is 95914712319381
• The number of decimal digits it has is: 14
• The sum of 18391321741959's digits is 63
• More coming soon!