142987

142,987 is an odd composite number composed of three prime numbers multiplied together.

What does the number 142987 look like?

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

142987 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 142987:

13 × 17 × 647

See below for interesting mathematical facts about the number 142987 from the Numbermatics database.

Names of 142987

Cardinal: 142987 can be written as One hundred forty-two thousand, nine hundred eighty-seven.

Scientific notation

Scientific notation: 1.42987 × 10⁵

Factors of 142987

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 3
Sum of prime factors: 677

Divisors of 142987

Number of divisors d(n): 8
Complete list of divisors:
1 13 17 221 647 8411 10999 142987
Sum of all divisors σ(n): 163296
Sum of proper divisors (its aliquot sum) s(n): 20309
142987 is a deficient number, because the sum of its proper divisors (20309) is less than itself. Its deficiency is 122678

Bases of 142987

Binary: 100010111010001011₂
Hexadecimal: 0x22E8B
Base-36: 32BV

Squares and roots of 142987

142987 squared (142987²) is 20445282169
142987 cubed (142987³) is 2923409561498803
The square root of 142987 is 378.1362188419
The cube root of 142987 is 52.2916306267

Scales and comparisons

How big is 142987?

142,987 seconds is equal to 1 day, 15 hours, 43 minutes, 7 seconds.
To count from 1 to 142,987 would take you about fifteen 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 142987 cubic inches would be around 4.4 feet tall.

Recreational maths with 142987

142987 backwards is 789241
The number of decimal digits it has is: 6
The sum of 142987's digits is 31
More coming soon!

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The information we have on file for 142987 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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