399681708885

Names of 399681708885

• Cardinal: 399681708885 can be written as Three hundred ninety-nine billion, six hundred eighty-one million, seven hundred eight thousand, eight hundred eighty-five.

Scientific notation

• Scientific notation: 3.99681708885 × 10¹¹

Factors of 399681708885

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 17313508

Divisors of 399681708885

• Number of divisors d(n): 48
• Complete list of divisors:
  1 3 5 9 15 19 27 45 57 81 95 135 171 243 285 405 513 855 1215 1539 2565 4617 7695 23085 17313481 51940443 86567405 155821329 259702215 328956139 467463987 779106645 986868417 1402391961 1644780695 2337319935 2960605251 4207175883 4934342085 7011959805 8881815753 14803026255 21035879415 26645447259 44409078765 79936341777 133227236295 399681708885
• Sum of all divisors σ(n): 756252893760
• Sum of proper divisors (its aliquot sum) s(n): 356571184875
• 399681708885 is a deficient number, because the sum of its proper divisors (356571184875) is less than itself. Its deficiency is 43110524010

Bases of 399681708885

• Binary: 101110100001110111000101110001101010101₂
• Hexadecimal: 0x5D0EE2E355
• Base-36: 53M064B9

Squares and roots of 399681708885

• 399681708885 squared (399681708885²) is 159745468417233887943225
• 399681708885 cubed (399681708885³) is 63847341803634836517880765858054125
• The square root of 399681708885 is 632203.8507356627
• The cube root of 399681708885 is 7366.1081545259

Scales and comparisons

• 399,681,708,885 seconds is equal to 12,708 years, 33 weeks, 2 days, 16 hours, 54 minutes, 45 seconds.
• To count from 1 to 399,681,708,885 would take you about twenty-five thousand, four hundred seventeen 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 399681708885 cubic inches would be around 613.8 feet tall.

Recreational maths with 399681708885

• 399681708885 backwards is 588807186993
• The number of decimal digits it has is: 12
• The sum of 399681708885's digits is 72
• More coming soon!