102991

102,991 is an odd composite number composed of two prime numbers multiplied together.

What does the number 102991 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 4 divisors.

102991 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.

Prime factorization of 102991:

7 × 14713

See below for interesting mathematical facts about the number 102991 from the Numbermatics database.

Names of 102991

Cardinal: 102991 can be written as One hundred two thousand, nine hundred ninety-one.

Scientific notation

Scientific notation: 1.02991 × 10⁵

Factors of 102991

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 2
Sum of prime factors: 14720

Divisors of 102991

Number of divisors d(n): 4
Complete list of divisors:
1 7 14713 102991
Sum of all divisors σ(n): 117712
Sum of proper divisors (its aliquot sum) s(n): 14721
102991 is a deficient number, because the sum of its proper divisors (14721) is less than itself. Its deficiency is 88270

Bases of 102991

Binary: 11001001001001111₂
Hexadecimal: 0x1924F
Base-36: 27GV

Squares and roots of 102991

102991 squared (102991²) is 10607146081
102991 cubed (102991³) is 1092440582028271
The square root of 102991 is 320.9221089299
The cube root of 102991 is 46.8741161315

Scales and comparisons

How big is 102991?

102,991 seconds is equal to 1 day, 4 hours, 36 minutes, 31 seconds.
To count from 1 to 102,991 would take you about four hours.

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 102991 cubic inches would be around 3.9 feet tall.

Recreational maths with 102991

102991 backwards is 199201
The number of decimal digits it has is: 6
The sum of 102991's digits is 22
More coming soon!

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The information we have on file for 102991 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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