139821

139,821 is an odd composite number composed of four prime numbers multiplied together.

What does the number 139821 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 16 divisors.

139821 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixteen divisors.

Prime factorization of 139821:

3 × 11 × 19 × 223

See below for interesting mathematical facts about the number 139821 from the Numbermatics database.

Names of 139821

Cardinal: 139821 can be written as One hundred thirty-nine thousand, eight hundred twenty-one.

Scientific notation

Scientific notation: 1.39821 × 10⁵

Factors of 139821

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 4
Sum of prime factors: 256

Divisors of 139821

Number of divisors d(n): 16
Complete list of divisors:
1 3 11 19 33 57 209 223 627 669 2453 4237 7359 12711 46607 139821
Sum of all divisors σ(n): 215040
Sum of proper divisors (its aliquot sum) s(n): 75219
139821 is a deficient number, because the sum of its proper divisors (75219) is less than itself. Its deficiency is 64602

Bases of 139821

Binary: 100010001000101101₂
Hexadecimal: 0x2222D
Base-36: 2ZVX

Squares and roots of 139821

139821 squared (139821²) is 19549912041
139821 cubed (139821³) is 2733488251484661
The square root of 139821 is 373.9264633587
The cube root of 139821 is 51.9028016651

Scales and comparisons

How big is 139821?

139,821 seconds is equal to 1 day, 14 hours, 50 minutes, 21 seconds.
To count from 1 to 139,821 would take you about fourteen 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 139821 cubic inches would be around 4.3 feet tall.

Recreational maths with 139821

139821 backwards is 128931
The number of decimal digits it has is: 6
The sum of 139821's digits is 24
More coming soon!

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The information we have on file for 139821 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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