1289920

1,289,920 is an even composite number composed of four prime numbers multiplied together.

What does the number 1289920 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 56 divisors.

1289920 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of fifty-six divisors.

Prime factorization of 1289920:

2⁶ × 5 × 29 × 139

(2 × 2 × 2 × 2 × 2 × 2 × 5 × 29 × 139)

See below for interesting mathematical facts about the number 1289920 from the Numbermatics database.

Names of 1289920

Cardinal: 1289920 can be written as One million, two hundred eighty-nine thousand, nine hundred twenty.

Scientific notation

Scientific notation: 1.28992 × 10⁶

Factors of 1289920

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 9
Sum of prime factors: 175

Divisors of 1289920

Number of divisors d(n): 56
Complete list of divisors:
1 2 4 5 8 10 16 20 29 32 40 58 64 80 116 139 145 160 232 278 290 320 464 556 580 695 928 1112 1160 1390 1856 2224 2320 2780 4031 4448 4640 5560 8062 8896 9280 11120 16124 20155 22240 32248 40310 44480 64496 80620 128992 161240 257984 322480 644960 1289920
Sum of all divisors σ(n): 3200400
Sum of proper divisors (its aliquot sum) s(n): 1910480
1289920 is an abundant number, because the sum of its proper divisors (1910480) is greater than itself. Its abundance is 620560

Bases of 1289920

Binary: 100111010111011000000₂
Hexadecimal: 0x13AEC0
Base-36: RNB4

Squares and roots of 1289920

1289920 squared (1289920²) is 1663893606400
1289920 cubed (1289920³) is 2146289640767488000
The square root of 1289920 is 1135.7464505777
The cube root of 1289920 is 108.8564729893

Scales and comparisons

How big is 1289920?

1,289,920 seconds is equal to 2 weeks, 22 hours, 18 minutes, 40 seconds.
To count from 1 to 1,289,920 would take you about three weeks!

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 1289920 cubic inches would be around 9.1 feet tall.

Recreational maths with 1289920

1289920 backwards is 0299821
The number of decimal digits it has is: 7
The sum of 1289920's digits is 31
More coming soon!

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The information we have on file for 1289920 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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