3989945231

Names of 3989945231

• Cardinal: 3989945231 can be written as Three billion, nine hundred eighty-nine million, nine hundred forty-five thousand, two hundred thirty-one.

Scientific notation

• Scientific notation: 3.989945231 × 10⁹

Factors of 3989945231

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 142032

Divisors of 3989945231

• Number of divisors d(n): 4
• Complete list of divisors:
  1 38561 103471 3989945231
• Sum of all divisors σ(n): 3990087264
• Sum of proper divisors (its aliquot sum) s(n): 142033
• 3989945231 is a deficient number, because the sum of its proper divisors (142033) is less than itself. Its deficiency is 3989803198

Bases of 3989945231

• Binary: 11101101110100011011101110001111₂
• Hexadecimal: 0xEDD1BB8F
• Base-36: 1TZIDFZ

Squares and roots of 3989945231

• 3989945231 squared (3989945231²) is 15919662946379643361
• 3989945231 cubed (3989945231³) is 63518583252034866743702761391
• The square root of 3989945231 is 63166.0132587137
• The cube root of 3989945231 is 1586.0698566987

Scales and comparisons

• 3,989,945,231 seconds is equal to 126 years, 45 weeks, 22 hours, 7 minutes, 11 seconds.
• To count from 1 to 3,989,945,231 would take you about two hundred fifty-three 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 3989945231 cubic inches would be around 132.2 feet tall.

Recreational maths with 3989945231

• 3989945231 backwards is 1325499893
• The number of decimal digits it has is: 10
• The sum of 3989945231's digits is 53
• More coming soon!