389978848678608225

Names of 389978848678608225

• Cardinal: 389978848678608225 can be written as Three hundred eighty-nine quadrillion, nine hundred seventy-eight trillion, eight hundred forty-eight billion, six hundred seventy-eight million, six hundred eight thousand, two hundred twenty-five.

Scientific notation

• Scientific notation: 3.89978848678608225 × 10¹⁷

Factors of 389978848678608225

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1541941

Divisors of 389978848678608225

• Number of divisors d(n): 81
• Complete list of divisors:
  1 3 5 9 15 25 27 45 75 81 135 225 243 405 675 729 1215 2025 2187 3645 6075 6561 10935 18225 32805 54675 164025 1541933 4625799 7709665 13877397 23128995 38548325 41632191 69386985 115644975 124896573 208160955 346934925 374689719 624482865 1040804775 1124069157 1873448595 3122414325 3372207471 5620345785 9367242975 10116622413 16861037355 28101728925 50583112065 84305186775 252915560325 2377557376489 7132672129467 11887786882445 21398016388401 35663360647335 59438934412225 64194049165203 106990081942005 178316803236675 192582147495609 320970245826015 534950409710025 577746442486827 962910737478045 1604851229130075 1733239327460481 2888732212434135 4814553687390225 5199717982381443 8666196637302405 14443661062170675 15599153947144329 25998589911907215 43330983186512025 77995769735721645 129992949559536075 389978848678608225
• Sum of all divisors σ(n): 725324276802223033
• Sum of proper divisors (its aliquot sum) s(n): 335345428123614808
• 389978848678608225 is a deficient number, because the sum of its proper divisors (335345428123614808) is less than itself. Its deficiency is 54633420554993417

Bases of 389978848678608225

• Binary: 10101101001011110111011001001011001011001110111110101100001₂
• Hexadecimal: 0x5697BB259677D61
• Base-36: 2YNVYPU3R529

Squares and roots of 389978848678608225

• 389978848678608225 squared (389978848678608225²) is 152083502416692812118158723037650625
• 389978848678608225 cubed (389978848678608225³) is 59309349175472194466495098293136232672826698801390625
• 389978848678608225 is a perfect square number. Its square root is 624482865
• The cube root of 389978848678608225 is 730601.1490828071

Scales and comparisons

• 389,978,848,678,608,225 seconds is equal to 12,400,121,104 years, 10 weeks, 2 days, 8 hours, 3 minutes, 45 seconds.
• To count from 1 to 389,978,848,678,608,225 would take you about thirty-seven billion, two hundred million, three hundred sixty-three thousand, three hundred twelve 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 389978848678608225 cubic inches would be around 60883.4 feet tall.

Recreational maths with 389978848678608225

• 389978848678608225 backwards is 522806876848879983
• The number of decimal digits it has is: 18
• The sum of 389978848678608225's digits is 108
• More coming soon!