139649

Names of 139649

• Cardinal: 139649 can be written as One hundred thirty-nine thousand, six hundred forty-nine.

Scientific notation

• Scientific notation: 1.39649 × 10⁵

Factors of 139649

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 1986

Divisors of 139649

• Number of divisors d(n): 4
• Complete list of divisors:
  1 73 1913 139649
• Sum of all divisors σ(n): 141636
• Sum of proper divisors (its aliquot sum) s(n): 1987
• 139649 is a deficient number, because the sum of its proper divisors (1987) is less than itself. Its deficiency is 137662

Bases of 139649

• Binary: 100010000110000001₂
• Hexadecimal: 0x22181
• Base-36: 2ZR5

Squares and roots of 139649

• 139649 squared (139649²) is 19501843201
• 139649 cubed (139649³) is 2723412901176449
• The square root of 139649 is 373.6964008389
• The cube root of 139649 is 51.8815102879

Scales and comparisons

• 139,649 seconds is equal to 1 day, 14 hours, 47 minutes, 29 seconds.
• To count from 1 to 139,649 would take you about fourteen hours.

  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 139649 cubic inches would be around 4.3 feet tall.

Recreational maths with 139649

• 139649 backwards is 946931
• The number of decimal digits it has is: 6
• The sum of 139649's digits is 32
• More coming soon!