28909320
28,909,320 is an even composite number composed of five prime numbers multiplied together.
28909320 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 28909320:
23 × 3 × 5 × 113 × 181
(2 × 2 × 2 × 3 × 5 × 11 × 11 × 11 × 181)See below for interesting mathematical facts about the number 28909320 from the Numbermatics database.
Names of 28909320
- Cardinal: 28909320 can be written as Twenty-eight million, nine hundred nine thousand, three hundred twenty.
Scientific notation
- Scientific notation: 2.890932 × 107
Factors of 28909320
Divisors of 28909320
- Number of divisors d(n): 128
-
Complete list of divisors:
1 2 3 4 5 6 8 10 11 12 15 20 22 24 30 33 40 44 55 60 66 88 110 120 121 132 165 181 220 242 264 330 362 363 440 484 543 605 660 724 726 905 968 1086 1210 1320 1331 1448 1452 1810 1815 1991 2172 2420 2662 2715 2904 3620 3630 3982 3993 4344 4840 5324 5430 5973 6655 7240 7260 7964 7986 9955 10648 10860 11946 13310 14520 15928 15972 19910 19965 21720 21901 23892 26620 29865 31944 39820 39930 43802 47784 53240 59730 65703 79640 79860 87604 109505 119460 131406 159720 175208 219010 238920 240911 262812 328515 438020 481822 525624 657030 722733 876040 963644 1204555 1314060 1445466 1927288 2409110 2628120 2890932 3613665 4818220 5781864 7227330 9636440 14454660 28909320
- Sum of all divisors σ(n): 95921280
- Sum of proper divisors (its aliquot sum) s(n): 67011960
- 28909320 is an abundant number, because the sum of its proper divisors (67011960) is greater than itself. Its abundance is 38102640
Bases of 28909320
- Binary: 11011100100011111000010002
- Hexadecimal: 0x1B91F08
- Base-36: H7MKO
Squares and roots of 28909320
- 28909320 squared (289093202) is 835748782862400
- 28909320 cubed (289093203) is 24160929003379637568000
-
The
square root of 28909320 is 5376.7387885223 -
The
cube root of 28909320 is 306.9111209855
Scales and comparisons
How big is 28909320?- 28,909,320 seconds is equal to 47 weeks, 5 days, 14 hours, 22 minutes.
-
To count from 1 to 28,909,320 would take you about nineteen 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 28909320 cubic inches would be around 25.6 feet tall.
Recreational maths with 28909320
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The information we have on file for 28909320 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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