397845945

Names of 397845945

• Cardinal: 397845945 can be written as Three hundred ninety-seven million, eight hundred forty-five thousand, nine hundred forty-five.

Scientific notation

• Scientific notation: 3.97845945 × 10⁸

Factors of 397845945

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 591

Divisors of 397845945

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 5 7 9 15 21 27 35 45 49 63 105 135 137 147 189 245 315 411 439 441 685 735 945 959 1233 1317 1323 2055 2195 2205 2877 3073 3699 3951 4795 6165 6585 6615 6713 8631 9219 11853 14385 15365 18495 19755 20139 21511 25893 27657 33565 43155 46095 59265 60143 60417 64533 82971 100695 107555 129465 138285 180429 181251 193599 300715 302085 322665 414855 421001 541287 580797 902145 906255 967995 1263003 1623861 2105005 2706435 2903985 2947007 3789009 6315015 8119305 8841021 11367027 14735035 18945045 26523063 44205105 56835135 79569189 132615315 397845945
• Sum of all divisors σ(n): 830649600
• Sum of proper divisors (its aliquot sum) s(n): 432803655
• 397845945 is an abundant number, because the sum of its proper divisors (432803655) is greater than itself. Its abundance is 34957710

Bases of 397845945

• Binary: 10111101101101010010110111001₂
• Hexadecimal: 0x17B6A5B9
• Base-36: 6KV7W9

Squares and roots of 397845945

• 397845945 squared (397845945²) is 158281395952943025
• 397845945 cubed (397845945³) is 62971611548817793312283625
• The square root of 397845945 is 19946.0759298665
• The cube root of 397845945 is 735.4813173919

Scales and comparisons

• 397,845,945 seconds is equal to 12 years, 33 weeks, 5 days, 16 hours, 45 minutes, 45 seconds.
• To count from 1 to 397,845,945 would take you about eighteen 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 397845945 cubic inches would be around 61.3 feet tall.

Recreational maths with 397845945

• 397845945 backwards is 549548793
• The number of decimal digits it has is: 9
• The sum of 397845945's digits is 54
• More coming soon!