71389144

Names of 71389144

• Cardinal: 71389144 can be written as Seventy-one million, three hundred eighty-nine thousand, one hundred forty-four.

Scientific notation

• Scientific notation: 7.1389144 × 10⁷

Factors of 71389144

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 8923645

Divisors of 71389144

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 4 8 8923643 17847286 35694572 71389144
• Sum of all divisors σ(n): 133854660
• Sum of proper divisors (its aliquot sum) s(n): 62465516
• 71389144 is a deficient number, because the sum of its proper divisors (62465516) is less than itself. Its deficiency is 8923628

Bases of 71389144

• Binary: 100010000010100111111011000₂
• Hexadecimal: 0x4414FD8
• Base-36: 16I47S

Squares and roots of 71389144

• 71389144 squared (71389144²) is 5096409881052736
• 71389144 cubed (71389144³) is 363828338881496641897984
• The square root of 71389144 is 8449.2096671819
• The cube root of 71389144 is 414.8369108041

Scales and comparisons

• 71,389,144 seconds is equal to 2 years, 14 weeks, 6 hours, 19 minutes, 4 seconds.
• To count from 1 to 71,389,144 would take you about 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 71389144 cubic inches would be around 34.6 feet tall.

Recreational maths with 71389144

• 71389144 backwards is 44198317
• The number of decimal digits it has is: 8
• The sum of 71389144's digits is 37
• More coming soon!