1445

1,445 is an odd composite number composed of two prime numbers multiplied together.

What does the number 1445 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 6 divisors.

1445 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of six divisors.

Prime factorization of 1445:

5 × 17²

(5 × 17 × 17)

See below for interesting mathematical facts about the number 1445 from the Numbermatics database.

Names of 1445

Cardinal: 1445 can be written as One thousand, four hundred forty-five.

Scientific notation

Scientific notation: 1.445 × 10³

Factors of 1445

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 3
Sum of prime factors: 22

Divisors of 1445

Number of divisors d(n): 6
Complete list of divisors:
1 5 17 85 289 1445
Sum of all divisors σ(n): 1842
Sum of proper divisors (its aliquot sum) s(n): 397
1445 is a deficient number, because the sum of its proper divisors (397) is less than itself. Its deficiency is 1048

Bases of 1445

Binary: 10110100101₂
Hexadecimal: 0x5A5
Base-36: 145

Squares and roots of 1445

1445 squared (1445²) is 2088025
1445 cubed (1445³) is 3017196125
The square root of 1445 is 38.0131556175
The cube root of 1445 is 11.3054871931

Scales and comparisons

How big is 1445?

1,445 seconds is equal to 24 minutes, 5 seconds.
To count from 1 to 1,445 would take you about twenty-four 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 1445 cubic inches would be around 0.9 feet tall.

Recreational maths with 1445

1445 backwards is 5441
The number of decimal digits it has is: 4
The sum of 1445's digits is 14
More coming soon!

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The information we have on file for 1445 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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