149720991

149,720,991 is an odd composite number composed of four prime numbers multiplied together.

What does the number 149720991 look like?

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

149720991 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 149720991:

3 × 7 × 47 × 151693

See below for interesting mathematical facts about the number 149720991 from the Numbermatics database.

Names of 149720991

Cardinal: 149720991 can be written as One hundred forty-nine million, seven hundred twenty thousand, nine hundred ninety-one.

Scientific notation

Scientific notation: 1.49720991 × 10⁸

Factors of 149720991

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 4
Sum of prime factors: 151750

Divisors of 149720991

Number of divisors d(n): 16
Complete list of divisors:
1 3 7 21 47 141 329 987 151693 455079 1061851 3185553 7129571 21388713 49906997 149720991
Sum of all divisors σ(n): 233001984
Sum of proper divisors (its aliquot sum) s(n): 83280993
149720991 is a deficient number, because the sum of its proper divisors (83280993) is less than itself. Its deficiency is 66439998

Bases of 149720991

Binary: 1000111011001000111110011111₂
Hexadecimal: 0x8EC8F9F
Base-36: 2H51GF

Squares and roots of 149720991

149720991 squared (149720991²) is 22416375146022081
149720991 cubed (149720991³) is 3356201901490195675202271
The square root of 149720991 is 12236.0529175057
The cube root of 149720991 is 530.9996453407

Scales and comparisons

How big is 149720991?

149,720,991 seconds is equal to 4 years, 39 weeks, 3 days, 21 hours, 9 minutes, 51 seconds.
To count from 1 to 149,720,991 would take you about seven 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 149720991 cubic inches would be around 44.2 feet tall.

Recreational maths with 149720991

149720991 backwards is 199027941
The number of decimal digits it has is: 9
The sum of 149720991's digits is 42
More coming soon!

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The information we have on file for 149720991 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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