138139875

Names of 138139875

• Cardinal: 138139875 can be written as One hundred thirty-eight million, one hundred thirty-nine thousand, eight hundred seventy-five.

Scientific notation

• Scientific notation: 1.38139875 × 10⁸

Factors of 138139875

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 289

Divisors of 138139875

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 5 9 15 17 25 31 45 51 75 85 93 125 153 155 225 233 255 279 375 425 465 527 699 765 775 1125 1165 1275 1395 1581 2097 2125 2325 2635 3495 3825 3875 3961 4743 5825 6375 6975 7223 7905 10485 11625 11883 13175 17475 19125 19805 21669 23715 29125 34875 35649 36115 39525 52425 59415 65007 65875 87375 99025 108345 118575 122791 178245 180575 197625 262125 297075 325035 368373 495125 541725 592875 613955 891225 902875 1105119 1485375 1625175 1841865 2708625 3069775 4456125 5525595 8125875 9209325 15348875 27627975 46046625 138139875
• Sum of all divisors σ(n): 273341952
• Sum of proper divisors (its aliquot sum) s(n): 135202077
• 138139875 is a deficient number, because the sum of its proper divisors (135202077) is less than itself. Its deficiency is 2937798

Bases of 138139875

• Binary: 1000001110111101100011100011₂
• Hexadecimal: 0x83BD8E3
• Base-36: 2A8TER

Squares and roots of 138139875

• 138139875 squared (138139875²) is 19082625065015625
• 138139875 cubed (138139875³) is 2636071441153125310546875
• The square root of 138139875 is 11753.2920920055
• The cube root of 138139875 is 516.9394616763

Scales and comparisons

• 138,139,875 seconds is equal to 4 years, 20 weeks, 2 days, 20 hours, 11 minutes, 15 seconds.
• To count from 1 to 138,139,875 would take you about 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 138139875 cubic inches would be around 43.1 feet tall.

Recreational maths with 138139875

• 138139875 backwards is 578931831
• 138139875 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 138139875's digits is 45
• More coming soon!