138580991

138,580,991 is an odd composite number composed of three prime numbers multiplied together.

What does the number 138580991 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 16 divisors.

138580991 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of sixteen divisors.

Prime factorization of 138580991:

17³ × 67 × 421

(17 × 17 × 17 × 67 × 421)

See below for interesting mathematical facts about the number 138580991 from the Numbermatics database.

Names of 138580991

Cardinal: 138580991 can be written as One hundred thirty-eight million, five hundred eighty thousand, nine hundred ninety-one.

Scientific notation

Scientific notation: 1.38580991 × 10⁸

Factors of 138580991

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 5
Sum of prime factors: 505

Divisors of 138580991

Number of divisors d(n): 16
Complete list of divisors:
1 17 67 289 421 1139 4913 7157 19363 28207 121669 329171 479519 2068373 8151823 138580991
Sum of all divisors σ(n): 149793120
Sum of proper divisors (its aliquot sum) s(n): 11212129
138580991 is a deficient number, because the sum of its proper divisors (11212129) is less than itself. Its deficiency is 127368862

Bases of 138580991

Binary: 1000010000101001001111111111₂
Hexadecimal: 0x84293FF
Base-36: 2AI9RZ

Squares and roots of 138580991

138580991 squared (138580991²) is 19204691066542081
138580991 cubed (138580991³) is 2661405119850248528182271
The square root of 138580991 is 11772.0427709043
The cube root of 138580991 is 517.4891170589

Scales and comparisons

How big is 138580991?

138,580,991 seconds is equal to 4 years, 21 weeks, 22 hours, 43 minutes, 11 seconds.
To count from 1 to 138,580,991 would take you about six years!

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 138580991 cubic inches would be around 43.1 feet tall.

Recreational maths with 138580991

138580991 backwards is 199085831
The number of decimal digits it has is: 9
The sum of 138580991's digits is 44
More coming soon!

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The information we have on file for 138580991 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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