398991

398,991 is an odd composite number composed of three prime numbers multiplied together.

What does the number 398991 look like?

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

398991 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 398991:

3 × 179 × 743

See below for interesting mathematical facts about the number 398991 from the Numbermatics database.

Names of 398991

Cardinal: 398991 can be written as Three hundred ninety-eight thousand, nine hundred ninety-one.

Scientific notation

Scientific notation: 3.98991 × 10⁵

Factors of 398991

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 3
Sum of prime factors: 925

Divisors of 398991

Number of divisors d(n): 8
Complete list of divisors:
1 3 179 537 743 2229 132997 398991
Sum of all divisors σ(n): 535680
Sum of proper divisors (its aliquot sum) s(n): 136689
398991 is a deficient number, because the sum of its proper divisors (136689) is less than itself. Its deficiency is 262302

Bases of 398991

Binary: 1100001011010001111₂
Hexadecimal: 0x6168F
Base-36: 8JV3

Squares and roots of 398991

398991 squared (398991²) is 159193818081
398991 cubed (398991³) is 63516900669956271
The square root of 398991 is 631.6573438187
The cube root of 398991 is 73.6186246779

Scales and comparisons

How big is 398991?

398,991 seconds is equal to 4 days, 14 hours, 49 minutes, 51 seconds.
To count from 1 to 398,991 would take you about four days.

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 398991 cubic inches would be around 6.1 feet tall.

Recreational maths with 398991

398991 backwards is 199893
The number of decimal digits it has is: 6
The sum of 398991's digits is 39
More coming soon!

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The information we have on file for 398991 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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