20002

Names of 20002

• Cardinal: 20002 can be written as Twenty thousand and two.

Scientific notation

• Scientific notation: 2.0002 × 10⁴

Factors of 20002

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 212

Divisors of 20002

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 73 137 146 274 10001 20002
• Sum of all divisors σ(n): 30636
• Sum of proper divisors (its aliquot sum) s(n): 10634
• 20002 is a deficient number, because the sum of its proper divisors (10634) is less than itself. Its deficiency is 9368

Bases of 20002

• Binary: 100111000100010₂
• Hexadecimal: 0x4E22
• Base-36: FFM

Squares and roots of 20002

• 20002 squared (20002²) is 400080004
• 20002 cubed (20002³) is 8002400240008
• The square root of 20002 is 141.4284271283
• The cube root of 20002 is 27.1450809417

Scales and comparisons

• 20,002 seconds is equal to 5 hours, 33 minutes, 22 seconds.
• To count from 1 to 20,002 would take you about five 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 20002 cubic inches would be around 2.3 feet tall.

Recreational maths with 20002

• 20002 is the same when its digits are reversed! That makes it a palindromic number.
• The number of decimal digits it has is: 5
• The sum of 20002's digits is 4
• More coming soon!