139407397129

Names of 139407397129

• Cardinal: 139407397129 can be written as One hundred thirty-nine billion, four hundred seven million, three hundred ninety-seven thousand, one hundred twenty-nine.

Scientific notation

• Scientific notation: 1.39407397129 × 10¹¹

Factors of 139407397129

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 404

Divisors of 139407397129

• Number of divisors d(n): 81
• Complete list of divisors:
  1 7 11 13 49 77 91 121 143 169 373 539 637 847 1001 1183 1573 1859 2611 4103 4849 5929 7007 8281 11011 13013 18277 20449 28721 33943 45133 53339 63037 77077 91091 139129 143143 201047 237601 315931 373373 441259 586729 693407 973903 1002001 1530419 1808677 2211517 2613611 3088813 4107103 4853849 6817321 7627477 10712933 12660739 16834609 19895447 23512801 28749721 33976943 53392339 74990531 88625173 117842263 139268129 164589607 218849917 258640811 373746373 824895841 974876903 1152127249 1531949419 1810485677 2845048921 10723645933 12673399739 19915342447 139407397129
• Sum of all divisors σ(n): 193535720469
• Sum of proper divisors (its aliquot sum) s(n): 54128323340
• 139407397129 is a deficient number, because the sum of its proper divisors (54128323340) is less than itself. Its deficiency is 85279073789

Bases of 139407397129

• Binary: 10000001110101010101000001000100001001₂
• Hexadecimal: 0x2075541109
• Base-36: 1S1JKC21

Squares and roots of 139407397129

• 139407397129 squared (139407397129²) is 19434422374282717442641
• 139407397129 cubed (139407397129³) is 2709302237904353867047549165577689
• 139407397129 is a perfect square number. Its square root is 373373
• The cube root of 139407397129 is 5185.1573428147

Scales and comparisons

• 139,407,397,129 seconds is equal to 4,432 years, 37 weeks, 4 days, 12 hours, 58 minutes, 49 seconds.
• To count from 1 to 139,407,397,129 would take you about eight thousand, eight hundred sixty-five 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 139407397129 cubic inches would be around 432.1 feet tall.

Recreational maths with 139407397129

• 139407397129 backwards is 921793704931
• The number of decimal digits it has is: 12
• The sum of 139407397129's digits is 55
• More coming soon!