398990

398,990 is an even composite number composed of four prime numbers multiplied together.

What does the number 398990 look like?

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

398990 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixteen divisors.

Prime factorization of 398990:

2 × 5 × 17 × 2347

See below for interesting mathematical facts about the number 398990 from the Numbermatics database.

Names of 398990

Cardinal: 398990 can be written as Three hundred ninety-eight thousand, nine hundred ninety.

Scientific notation

Scientific notation: 3.9899 × 10⁵

Factors of 398990

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 4
Sum of prime factors: 2371

Divisors of 398990

Number of divisors d(n): 16
Complete list of divisors:
1 2 5 10 17 34 85 170 2347 4694 11735 23470 39899 79798 199495 398990
Sum of all divisors σ(n): 760752
Sum of proper divisors (its aliquot sum) s(n): 361762
398990 is a deficient number, because the sum of its proper divisors (361762) is less than itself. Its deficiency is 37228

Bases of 398990

Binary: 1100001011010001110₂
Hexadecimal: 0x6168E
Base-36: 8JV2

Squares and roots of 398990

398990 squared (398990²) is 159193020100
398990 cubed (398990³) is 63516423089699000
The square root of 398990 is 631.6565522497
The cube root of 398990 is 73.6185631737

Scales and comparisons

How big is 398990?

398,990 seconds is equal to 4 days, 14 hours, 49 minutes, 50 seconds.
To count from 1 to 398,990 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 398990 cubic inches would be around 6.1 feet tall.

Recreational maths with 398990

398990 backwards is 099893
The number of decimal digits it has is: 6
The sum of 398990's digits is 38
More coming soon!

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The information we have on file for 398990 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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