161920

161,920 is an even composite number composed of four prime numbers multiplied together.

What does the number 161920 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 64 divisors.

161920 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixty-four divisors.

Prime factorization of 161920:

27 × 5 × 11 × 23

(2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 11 × 23)

See below for interesting mathematical facts about the number 161920 from the Numbermatics database.

Names of 161920

• Cardinal: 161920 can be written as One hundred sixty-one thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.6192 × 105

Factors of 161920

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 41

Divisors of 161920

• Number of divisors d(n): 64
• Complete list of divisors:
• Sum of all divisors σ(n): 440640
• Sum of proper divisors (its aliquot sum) s(n): 278720
• 161920 is an abundant number, because the sum of its proper divisors (278720) is greater than itself. Its abundance is 116800

Bases of 161920

• Binary: 1001111000100000002
• Hexadecimal: 0x27880
• Base-36: 3GXS

Squares and roots of 161920

• 161920 squared (1619202) is 26218086400
• 161920 cubed (1619203) is 4245232549888000
• The square root of 161920 is 402.3928428787
• The cube root of 161920 is 54.5046428723

Scales and comparisons

How big is 161920?
• 161,920 seconds is equal to 1 day, 20 hours, 58 minutes, 40 seconds.
• To count from 1 to 161,920 would take you about twenty 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 161920 cubic inches would be around 4.5 feet tall.

Recreational maths with 161920

• 161920 backwards is 029161
• The number of decimal digits it has is: 6
• The sum of 161920's digits is 19
• More coming soon!

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The information we have on file for 161920 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!

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