21153

Names of 21153

• Cardinal: 21153 can be written as Twenty-one thousand, one hundred fifty-three.

Scientific notation

• Scientific notation: 2.1153 × 10⁴

Factors of 21153

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 655

Divisors of 21153

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 11 33 641 1923 7051 21153
• Sum of all divisors σ(n): 30816
• Sum of proper divisors (its aliquot sum) s(n): 9663
• 21153 is a deficient number, because the sum of its proper divisors (9663) is less than itself. Its deficiency is 11490

Bases of 21153

• Binary: 101001010100001₂
• Hexadecimal: 0x52A1
• Base-36: GBL

Squares and roots of 21153

• 21153 squared (21153²) is 447449409
• 21153 cubed (21153³) is 9464897348577
• The square root of 21153 is 145.4407095693
• The cube root of 21153 is 27.6560821433

Scales and comparisons

• 21,153 seconds is equal to 5 hours, 52 minutes, 33 seconds.
• To count from 1 to 21,153 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 21153 cubic inches would be around 2.3 feet tall.

Recreational maths with 21153

• 21153 backwards is 35112
• The number of decimal digits it has is: 5
• The sum of 21153's digits is 12
• More coming soon!