87121

Names of 87121

• Cardinal: 87121 can be written as Eighty-seven thousand, one hundred twenty-one.

Scientific notation

• Scientific notation: 8.7121 × 10⁴

Factors of 87121

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 87121

Divisors of 87121

• Number of divisors d(n): 2
• Complete list of divisors:
  1 87121
• Sum of all divisors σ(n): 87122
• Sum of proper divisors (its aliquot sum) s(n): 1
• 87121 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 87120

Bases of 87121

• Binary: 10101010001010001₂
• Hexadecimal: 0x15451
• Base-36: 1V81

Squares and roots of 87121

• 87121 squared (87121²) is 7590068641
• 87121 cubed (87121³) is 661254370072561
• The square root of 87121 is 295.1626670161
• The cube root of 87121 is 44.3310091055

Scales and comparisons

• 87,121 seconds is equal to 1 day, 12 minutes, 1 second.
• To count from 1 to 87,121 would take you about twelve minutes.

  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 87121 cubic inches would be around 3.7 feet tall.

Recreational maths with 87121

• 87121 backwards is 12178
• The number of decimal digits it has is: 5
• The sum of 87121's digits is 19
• More coming soon!