391998

391,998 is an even composite number composed of four prime numbers multiplied together.

What does the number 391998 look like?

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

391998 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 391998:

2 × 3 × 79 × 827

See below for interesting mathematical facts about the number 391998 from the Numbermatics database.

Names of 391998

Cardinal: 391998 can be written as Three hundred ninety-one thousand, nine hundred ninety-eight.

Scientific notation

Scientific notation: 3.91998 × 10⁵

Factors of 391998

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 4
Sum of prime factors: 911

Divisors of 391998

Number of divisors d(n): 16
Complete list of divisors:
1 2 3 6 79 158 237 474 827 1654 2481 4962 65333 130666 195999 391998
Sum of all divisors σ(n): 794880
Sum of proper divisors (its aliquot sum) s(n): 402882
391998 is an abundant number, because the sum of its proper divisors (402882) is greater than itself. Its abundance is 10884

Bases of 391998

Binary: 1011111101100111110₂
Hexadecimal: 0x5FB3E
Base-36: 8EGU

Squares and roots of 391998

391998 squared (391998²) is 153662432004
391998 cubed (391998³) is 60235366020703992
The square root of 391998 is 626.0974365065
The cube root of 391998 is 73.1859897341

Scales and comparisons

How big is 391998?

391,998 seconds is equal to 4 days, 12 hours, 53 minutes, 18 seconds.
To count from 1 to 391,998 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 391998 cubic inches would be around 6.1 feet tall.

Recreational maths with 391998

391998 backwards is 899193
The number of decimal digits it has is: 6
The sum of 391998's digits is 39
More coming soon!

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The information we have on file for 391998 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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