381000

Names of 381000

• Cardinal: 381000 can be written as Three hundred eighty-one thousand.

Scientific notation

• Scientific notation: 3.81 × 10⁵

Factors of 381000

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 137

Divisors of 381000

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 20 24 25 30 40 50 60 75 100 120 125 127 150 200 250 254 300 375 381 500 508 600 635 750 762 1000 1016 1270 1500 1524 1905 2540 3000 3048 3175 3810 5080 6350 7620 9525 12700 15240 15875 19050 25400 31750 38100 47625 63500 76200 95250 127000 190500 381000
• Sum of all divisors σ(n): 1198080
• Sum of proper divisors (its aliquot sum) s(n): 817080
• 381000 is an abundant number, because the sum of its proper divisors (817080) is greater than itself. Its abundance is 436080

Bases of 381000

• Binary: 1011101000001001000₂
• Hexadecimal: 0x5D048
• Base-36: 85ZC

Squares and roots of 381000

• 381000 squared (381000²) is 145161000000
• 381000 cubed (381000³) is 55306341000000000
• The square root of 381000 is 617.2519744803
• The cube root of 381000 is 72.4950452421

Scales and comparisons

• 381,000 seconds is equal to 4 days, 9 hours, 50 minutes.
• To count from 1 to 381,000 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 381000 cubic inches would be around 6 feet tall.

Recreational maths with 381000

• 381000 backwards is 000183
• 381000 is a Harshad number.
• The number of decimal digits it has is: 6
• The sum of 381000's digits is 12
• More coming soon!