389400

Names of 389400

• Cardinal: 389400 can be written as Three hundred eighty-nine thousand, four hundred.

Scientific notation

• Scientific notation: 3.894 × 10⁵

Factors of 389400

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 80

Divisors of 389400

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 15 20 22 24 25 30 33 40 44 50 55 59 60 66 75 88 100 110 118 120 132 150 165 177 200 220 236 264 275 295 300 330 354 440 472 550 590 600 649 660 708 825 885 1100 1180 1298 1320 1416 1475 1650 1770 1947 2200 2360 2596 2950 3245 3300 3540 3894 4425 5192 5900 6490 6600 7080 7788 8850 9735 11800 12980 15576 16225 17700 19470 25960 32450 35400 38940 48675 64900 77880 97350 129800 194700 389400
• Sum of all divisors σ(n): 1339200
• Sum of proper divisors (its aliquot sum) s(n): 949800
• 389400 is an abundant number, because the sum of its proper divisors (949800) is greater than itself. Its abundance is 560400

Bases of 389400

• Binary: 1011111000100011000₂
• Hexadecimal: 0x5F118
• Base-36: 8CGO

Squares and roots of 389400

• 389400 squared (389400²) is 151632360000
• 389400 cubed (389400³) is 59045640984000000
• The square root of 389400 is 624.0192304729
• The cube root of 389400 is 73.0239491071

Scales and comparisons

• 389,400 seconds is equal to 4 days, 12 hours, 10 minutes.
• To count from 1 to 389,400 would take you about four days.

  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 389400 cubic inches would be around 6.1 feet tall.

Recreational maths with 389400

• 389400 backwards is 004983
• 389400 is a Harshad number.
• The number of decimal digits it has is: 6
• The sum of 389400's digits is 24
• More coming soon!