391317993

391,317,993 is an odd composite number composed of three prime numbers multiplied together.

What does the number 391317993 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 32 divisors.

391317993 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of thirty-two divisors.

Prime factorization of 391317993:

3³ × 11³ × 10889

(3 × 3 × 3 × 11 × 11 × 11 × 10889)

See below for interesting mathematical facts about the number 391317993 from the Numbermatics database.

Names of 391317993

Cardinal: 391317993 can be written as Three hundred ninety-one million, three hundred seventeen thousand, nine hundred ninety-three.

Scientific notation

Scientific notation: 3.91317993 × 10⁸

Factors of 391317993

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 7
Sum of prime factors: 10903

Divisors of 391317993

Number of divisors d(n): 32
Complete list of divisors:
1 3 9 11 27 33 99 121 297 363 1089 1331 3267 3993 10889 11979 32667 35937 98001 119779 294003 359337 1078011 1317569 3234033 3952707 11858121 14493259 35574363 43479777 130439331 391317993
Sum of all divisors σ(n): 637718400
Sum of proper divisors (its aliquot sum) s(n): 246400407
391317993 is a deficient number, because the sum of its proper divisors (246400407) is less than itself. Its deficiency is 144917586

Bases of 391317993

Binary: 10111010100110000100111101001₂
Hexadecimal: 0x175309E9
Base-36: 6GZAW9

Squares and roots of 391317993

391317993 squared (391317993²) is 153129771645548049
391317993 cubed (391317993³) is 59922434908884169919745657
The square root of 391317993 is 19781.7590977143
The cube root of 391317993 is 731.4364615889

Scales and comparisons

How big is 391317993?

391,317,993 seconds is equal to 12 years, 23 weeks, 3 hours, 26 minutes, 33 seconds.
To count from 1 to 391,317,993 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 391317993 cubic inches would be around 61 feet tall.

Recreational maths with 391317993

391317993 backwards is 399713193
The number of decimal digits it has is: 9
The sum of 391317993's digits is 45
More coming soon!

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The information we have on file for 391317993 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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