1389140

Names of 1389140

• Cardinal: 1389140 can be written as One million, three hundred eighty-nine thousand, one hundred forty.

Scientific notation

• Scientific notation: 1.38914 × 10⁶

Factors of 1389140

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 69464

Divisors of 1389140

• Number of divisors d(n): 12
• Complete list of divisors:
  1 2 4 5 10 20 69457 138914 277828 347285 694570 1389140
• Sum of all divisors σ(n): 2917236
• Sum of proper divisors (its aliquot sum) s(n): 1528096
• 1389140 is an abundant number, because the sum of its proper divisors (1528096) is greater than itself. Its abundance is 138956

Bases of 1389140

• Binary: 101010011001001010100₂
• Hexadecimal: 0x153254
• Base-36: TRV8

Squares and roots of 1389140

• 1389140 squared (1389140²) is 1929709939600
• 1389140 cubed (1389140³) is 2680637265495944000
• The square root of 1389140 is 1178.6178345843
• The cube root of 1389140 is 111.5788820241

Scales and comparisons

• 1,389,140 seconds is equal to 2 weeks, 2 days, 1 hour, 52 minutes, 20 seconds.
• To count from 1 to 1,389,140 would take you about three weeks!

  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 1389140 cubic inches would be around 9.3 feet tall.

Recreational maths with 1389140

• 1389140 backwards is 0419831
• The number of decimal digits it has is: 7
• The sum of 1389140's digits is 26
• More coming soon!