130721

130,721 is an odd composite number composed of two prime numbers multiplied together.

What does the number 130721 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 4 divisors.

130721 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.

Prime factorization of 130721:

37 × 3533

See below for interesting mathematical facts about the number 130721 from the Numbermatics database.

Names of 130721

Cardinal: 130721 can be written as One hundred thirty thousand, seven hundred twenty-one.

Scientific notation

Scientific notation: 1.30721 × 10⁵

Factors of 130721

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 2
Sum of prime factors: 3570

Divisors of 130721

Number of divisors d(n): 4
Complete list of divisors:
1 37 3533 130721
Sum of all divisors σ(n): 134292
Sum of proper divisors (its aliquot sum) s(n): 3571
130721 is a deficient number, because the sum of its proper divisors (3571) is less than itself. Its deficiency is 127150

Bases of 130721

Binary: 11111111010100001₂
Hexadecimal: 0x1FEA1
Base-36: 2SV5

Squares and roots of 130721

130721 squared (130721²) is 17087979841
130721 cubed (130721³) is 2233757812795361
The square root of 130721 is 361.5535921547
The cube root of 130721 is 50.7514498845

Scales and comparisons

How big is 130721?

130,721 seconds is equal to 1 day, 12 hours, 18 minutes, 41 seconds.
To count from 1 to 130,721 would take you about twelve 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 130721 cubic inches would be around 4.2 feet tall.

Recreational maths with 130721

130721 backwards is 127031
The number of decimal digits it has is: 6
The sum of 130721's digits is 14
More coming soon!

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The information we have on file for 130721 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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