66989

66,989 is an odd composite number composed of two prime numbers multiplied together.

What does the number 66989 look like?

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

66989 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 66989:

13 × 5153

See below for interesting mathematical facts about the number 66989 from the Numbermatics database.

Names of 66989

Cardinal: 66989 can be written as Sixty-six thousand, nine hundred eighty-nine.

Scientific notation

Scientific notation: 6.6989 × 10⁴

Factors of 66989

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 2
Sum of prime factors: 5166

Divisors of 66989

Number of divisors d(n): 4
Complete list of divisors:
1 13 5153 66989
Sum of all divisors σ(n): 72156
Sum of proper divisors (its aliquot sum) s(n): 5167
66989 is a deficient number, because the sum of its proper divisors (5167) is less than itself. Its deficiency is 61822

Bases of 66989

Binary: 10000010110101101₂
Hexadecimal: 0x105AD
Base-36: 1FOT

Squares and roots of 66989

66989 squared (66989²) is 4487526121
66989 cubed (66989³) is 300614887319669
The square root of 66989 is 258.8223328849
The cube root of 66989 is 40.6132581451

Scales and comparisons

How big is 66989?

66,989 seconds is equal to 18 hours, 36 minutes, 29 seconds.
To count from 1 to 66,989 would take you about eighteen 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 66989 cubic inches would be around 3.4 feet tall.

Recreational maths with 66989

66989 backwards is 98966
The number of decimal digits it has is: 5
The sum of 66989's digits is 38
More coming soon!

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The information we have on file for 66989 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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