18189648729

Names of 18189648729

• Cardinal: 18189648729 can be written as Eighteen billion, one hundred eighty-nine million, six hundred forty-eight thousand, seven hundred twenty-nine.

Scientific notation

• Scientific notation: 1.8189648729 × 10¹⁰

Factors of 18189648729

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 127

Divisors of 18189648729

• Number of divisors d(n): 162
• Complete list of divisors:
  1 3 7 9 17 21 41 49 51 59 63 119 123 147 153 177 287 289 357 369 413 441 531 697 833 861 867 1003 1071 1239 2009 2023 2091 2419 2499 2583 2601 2891 3009 3481 3717 4879 6027 6069 6273 7021 7257 7497 8673 9027 10443 11849 14161 14637 16933 17051 18081 18207 21063 21771 24367 26019 31329 34153 35547 41123 42483 43911 49147 50799 51153 59177 63189 73101 82943 102459 106641 118531 119357 123369 127449 142721 147441 152397 153459 170569 177531 219303 248829 287861 307377 355593 358071 370107 414239 428163 442323 511707 532593 580601 699091 746487 835499 863583 999047 1006009 1066779 1074213 1242717 1284489 1535121 1741803 2015027 2097273 2426257 2506497 2590749 2899673 2997141 3018027 3728151 4893637 5225409 6045081 6291819 6993329 7042063 7278771 7519491 8699019 8991423 9054081 14680911 16983799 18135243 20979987 21126189 21836313 26097057 34255459 41246369 44042733 49294441 50951397 62939961 63378567 102766377 118886593 123739107 147883323 152854191 288724583 308299131 356659779 371217321 443649969 866173749 1069979337 2021072081 2598521247 6063216243 18189648729
• Sum of all divisors σ(n): 33832321614
• Sum of proper divisors (its aliquot sum) s(n): 15642672885
• 18189648729 is a deficient number, because the sum of its proper divisors (15642672885) is less than itself. Its deficiency is 2546975844

Bases of 18189648729

• Binary: 10000111100001100000000001101011001₂
• Hexadecimal: 0x43C300359
• Base-36: 8CTNAS9

Squares and roots of 18189648729

• 18189648729 squared (18189648729²) is 330863320884411315441
• 18189648729 cubed (18189648729³) is 6018287584197851439824603724489
• The square root of 18189648729 is 134869.0058130481
• The cube root of 18189648729 is 2629.9133364051

Scales and comparisons

• 18,189,648,729 seconds is equal to 578 years, 19 weeks, 3 days, 8 hours, 12 minutes, 9 seconds.
• To count from 1 to 18,189,648,729 would take you about one thousand, one hundred fifty-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 18189648729 cubic inches would be around 219.2 feet tall.

Recreational maths with 18189648729

• 18189648729 backwards is 92784698181
• 18189648729 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18189648729's digits is 63
• More coming soon!