397628957138

Names of 397628957138

• Cardinal: 397628957138 can be written as Three hundred ninety-seven billion, six hundred twenty-eight million, nine hundred fifty-seven thousand, one hundred thirty-eight.

Scientific notation

• Scientific notation: 3.97628957138 × 10¹¹

Factors of 397628957138

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 25394

Divisors of 397628957138

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 7 14 179 358 1253 2506 12197 13009 24394 26018 85379 91063 170758 182126 2183263 2328611 4366526 4657222 15282841 16300277 30565682 32600554 158670773 317341546 1110695411 2221390822 28402068367 56804136734 198814478569 397628957138
• Sum of all divisors σ(n): 685566633600
• Sum of proper divisors (its aliquot sum) s(n): 287937676462
• 397628957138 is a deficient number, because the sum of its proper divisors (287937676462) is less than itself. Its deficiency is 109691280676

Bases of 397628957138

• Binary: 101110010010100100010000110000111010010₂
• Hexadecimal: 0x5C948861D2
• Base-36: 52O20IXE

Squares and roots of 397628957138

• 397628957138 squared (397628957138²) is 158108787554653441151044
• 397628957138 cubed (397628957138³) is 62868632309710440983892680059952072
• The square root of 397628957138 is 630578.2720154573
• The cube root of 397628957138 is 7353.4758091811

Scales and comparisons

• 397,628,957,138 seconds is equal to 12,643 years, 19 weeks, 2 days, 5 minutes, 38 seconds.
• To count from 1 to 397,628,957,138 would take you about twenty-five thousand, two 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 397628957138 cubic inches would be around 612.8 feet tall.

Recreational maths with 397628957138

• 397628957138 backwards is 831759826793
• The number of decimal digits it has is: 12
• The sum of 397628957138's digits is 68
• More coming soon!