40389928169721

Names of 40389928169721

• Cardinal: 40389928169721 can be written as Forty trillion, three hundred eighty-nine billion, nine hundred twenty-eight million, one hundred sixty-nine thousand, seven hundred twenty-one.

Scientific notation

• Scientific notation: 4.0389928169721 × 10¹³

Factors of 40389928169721

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 2541469

Divisors of 40389928169721

• Number of divisors d(n): 48
• Complete list of divisors:
  1 3 13 39 107 169 293 321 507 879 1391 3809 4173 11427 18083 31351 49517 54249 94053 148551 407563 1222689 2541053 5298319 7623159 15894957 33033689 99101067 271892671 429437957 744528529 815678013 1288313871 2233585587 3534604723 9678870877 10603814169 29036612631 45949861399 79664552603 125825321401 137849584197 238993657809 377475964203 1035639183839 3106917551517 13463309389907 40389928169721
• Sum of all divisors σ(n): 59060356117056
• Sum of proper divisors (its aliquot sum) s(n): 18670427947335
• 40389928169721 is a deficient number, because the sum of its proper divisors (18670427947335) is less than itself. Its deficiency is 21719500222386

Bases of 40389928169721

• Binary: 1001001011110000000011010100100011000011111001₂
• Hexadecimal: 0x24BC035230F9
• Base-36: EBEVKE86X

Squares and roots of 40389928169721

• 40389928169721 squared (40389928169721²) is 1631346297555221968981217841
• 40389928169721 cubed (40389928169721³) is 65889959778195716318539449747766721192361
• The square root of 40389928169721 is 6355307.0869723517
• The cube root of 40389928169721 is 34310.2877423349

Scales and comparisons

• 40,389,928,169,721 seconds is equal to 1,284,274 years, 40 weeks, 4 days, 11 hours, 35 minutes, 21 seconds.
• To count from 1 to 40,389,928,169,721 would take you about three million, two hundred ten thousand, six hundred eighty-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 40389928169721 cubic inches would be around 2859.2 feet tall.

Recreational maths with 40389928169721

• 40389928169721 backwards is 12796182998304
• The number of decimal digits it has is: 14
• The sum of 40389928169721's digits is 69
• More coming soon!