155381

Names of 155381

• Cardinal: 155381 can be written as One hundred fifty-five thousand, three hundred eighty-one.

Scientific notation

• Scientific notation: 1.55381 × 10⁵

Factors of 155381

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 155381

Divisors of 155381

• Number of divisors d(n): 2
• Complete list of divisors:
  1 155381
• Sum of all divisors σ(n): 155382
• Sum of proper divisors (its aliquot sum) s(n): 1
• 155381 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 155380

Bases of 155381

• Binary: 100101111011110101₂
• Hexadecimal: 0x25EF5
• Base-36: 3BW5

Squares and roots of 155381

• 155381 squared (155381²) is 24143255161
• 155381 cubed (155381³) is 3751403130171341
• The square root of 155381 is 394.1839672035
• The cube root of 155381 is 53.7608306999

Scales and comparisons

• 155,381 seconds is equal to 1 day, 19 hours, 9 minutes, 41 seconds.
• To count from 1 to 155,381 would take you about nineteen hours.

  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 155381 cubic inches would be around 4.5 feet tall.

Recreational maths with 155381

• 155381 backwards is 183551
• 155381 is a twin prime! Its twin is 155383
• The number of decimal digits it has is: 6
• The sum of 155381's digits is 23
• More coming soon!