20992

20,992 is an even composite number composed of two prime numbers multiplied together.

What does the number 20992 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 20 divisors.

20992 is an even composite number. It is composed of two distinct prime numbers multiplied together. It has a total of twenty divisors.

Prime factorization of 20992:

29 × 41

(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 41)

See below for interesting mathematical facts about the number 20992 from the Numbermatics database.

Names of 20992

• Cardinal: 20992 can be written as Twenty thousand, nine hundred ninety-two.

Scientific notation

• Scientific notation: 2.0992 × 104

Factors of 20992

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 43

Divisors of 20992

• Number of divisors d(n): 20
• Complete list of divisors:
• Sum of all divisors σ(n): 42966
• Sum of proper divisors (its aliquot sum) s(n): 21974
• 20992 is an abundant number, because the sum of its proper divisors (21974) is greater than itself. Its abundance is 982

Bases of 20992

• Binary: 1010010000000002
• Base-36: G74

Squares and roots of 20992

• 20992 squared (209922) is 440664064
• 20992 cubed (209923) is 9250420031488
• The square root of 20992 is 144.8861622103
• The cube root of 20992 is 27.5857379229

Scales and comparisons

How big is 20992?
• 20,992 seconds is equal to 5 hours, 49 minutes, 52 seconds.
• To count from 1 to 20,992 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 20992 cubic inches would be around 2.3 feet tall.

Recreational maths with 20992

• 20992 backwards is 29902
• The number of decimal digits it has is: 5
• The sum of 20992's digits is 22
• More coming soon!

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