1289

1,289 is a prime number. Like all primes greater than two, it is odd and has no factors apart from itself and one.

What does the number 1289 look like?

As a prime, it is not composed of any other numbers and has no internal structure.

1289 is a prime number. Like all primes (except two), it is an odd number.

Prime factorization of 1289:

1289

See below for interesting mathematical facts about the number 1289 from the Numbermatics database.

Names of 1289

Cardinal: 1289 can be written as One thousand, two hundred eighty-nine.

Scientific notation

Scientific notation: 1.289 × 10³

Factors of 1289

Number of distinct prime factors ω(n): 1
Total number of prime factors Ω(n): 1
Sum of prime factors: 1289

Divisors of 1289

Number of divisors d(n): 2
Complete list of divisors:
1 1289
Sum of all divisors σ(n): 1290
Sum of proper divisors (its aliquot sum) s(n): 1
1289 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 1288

Bases of 1289

Binary: 10100001001₂
Hexadecimal: 0x509
Base-36: ZT

Squares and roots of 1289

1289 squared (1289²) is 1661521
1289 cubed (1289³) is 2141700569
The square root of 1289 is 35.9026461421
The cube root of 1289 is 10.8830587205

Scales and comparisons

How big is 1289?

1,289 seconds is equal to 21 minutes, 29 seconds.
To count from 1 to 1,289 would take you about twenty-one minutes.

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 1289 cubic inches would be around 0.9 feet tall.

Recreational maths with 1289

1289 backwards is 9821
1289 is a twin prime! Its twin is 1291
The number of decimal digits it has is: 4
The sum of 1289's digits is 20
More coming soon!

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The information we have on file for 1289 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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