20902

Names of 20902

• Cardinal: 20902 can be written as Twenty thousand, nine hundred two.

Scientific notation

• Scientific notation: 2.0902 × 10⁴

Factors of 20902

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 1502

Divisors of 20902

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 7 14 1493 2986 10451 20902
• Sum of all divisors σ(n): 35856
• Sum of proper divisors (its aliquot sum) s(n): 14954
• 20902 is a deficient number, because the sum of its proper divisors (14954) is less than itself. Its deficiency is 5948

Bases of 20902

• Binary: 101000110100110₂
• Hexadecimal: 0x51A6
• Base-36: G4M

Squares and roots of 20902

• 20902 squared (20902²) is 436893604
• 20902 cubed (20902³) is 9131950110808
• The square root of 20902 is 144.5752399271
• The cube root of 20902 is 27.5462582327

Scales and comparisons

• 20,902 seconds is equal to 5 hours, 48 minutes, 22 seconds.
• To count from 1 to 20,902 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 20902 cubic inches would be around 2.3 feet tall.

Recreational maths with 20902

• 20902 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 20902's digits is 13
• More coming soon!