389201891

389,201,891 is an odd composite number composed of three prime numbers multiplied together.

What does the number 389201891 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 8 divisors.

389201891 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eight divisors.

Prime factorization of 389201891:

13 × 389 × 76963

See below for interesting mathematical facts about the number 389201891 from the Numbermatics database.

Names of 389201891

Cardinal: 389201891 can be written as Three hundred eighty-nine million, two hundred one thousand, eight hundred ninety-one.

Scientific notation

Scientific notation: 3.89201891 × 10⁸

Factors of 389201891

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 3
Sum of prime factors: 77365

Divisors of 389201891

Number of divisors d(n): 8
Complete list of divisors:
1 13 389 5057 76963 1000519 29938607 389201891
Sum of all divisors σ(n): 420223440
Sum of proper divisors (its aliquot sum) s(n): 31021549
389201891 is a deficient number, because the sum of its proper divisors (31021549) is less than itself. Its deficiency is 358180342

Bases of 389201891

Binary: 10111001100101011111111100011₂
Hexadecimal: 0x1732BFE3
Base-36: 6FPY3N

Squares and roots of 389201891

389201891 squared (389201891²) is 151478111957975881
389201891 cubed (389201891³) is 58955567619153925417590971
The square root of 389201891 is 19728.2003994281
The cube root of 389201891 is 730.1156325241

Scales and comparisons

How big is 389201891?

389,201,891 seconds is equal to 12 years, 19 weeks, 3 days, 15 hours, 38 minutes, 11 seconds.
To count from 1 to 389,201,891 would take you about eighteen 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 389201891 cubic inches would be around 60.8 feet tall.

Recreational maths with 389201891

389201891 backwards is 198102983
The number of decimal digits it has is: 9
The sum of 389201891's digits is 41
More coming soon!

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The information we have on file for 389201891 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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