139216749

Names of 139216749

• Cardinal: 139216749 can be written as One hundred thirty-nine million, two hundred sixteen thousand, seven hundred forty-nine.

Scientific notation

• Scientific notation: 1.39216749 × 10⁸

Factors of 139216749

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 6629379

Divisors of 139216749

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 7 21 6629369 19888107 46405583 139216749
• Sum of all divisors σ(n): 212139840
• Sum of proper divisors (its aliquot sum) s(n): 72923091
• 139216749 is a deficient number, because the sum of its proper divisors (72923091) is less than itself. Its deficiency is 66293658

Bases of 139216749

• Binary: 1000010011000100011101101101₂
• Hexadecimal: 0x84C476D
• Base-36: 2AVWBX

Squares and roots of 139216749

• 139216749 squared (139216749²) is 19381303202129001
• 139216749 cubed (139216749³) is 2698202023183689397837749
• The square root of 139216749 is 11799.0147470033
• The cube root of 139216749 is 518.2792591401

Scales and comparisons

• 139,216,749 seconds is equal to 4 years, 22 weeks, 1 day, 7 hours, 19 minutes, 9 seconds.
• To count from 1 to 139,216,749 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 139216749 cubic inches would be around 43.2 feet tall.

Recreational maths with 139216749

• 139216749 backwards is 947612931
• The number of decimal digits it has is: 9
• The sum of 139216749's digits is 42
• More coming soon!