21138600
21,138,600 is an even composite number composed of five prime numbers multiplied together.
21138600 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 21138600:
23 × 3 × 52 × 72 × 719
(2 × 2 × 2 × 3 × 5 × 5 × 7 × 7 × 719)See below for interesting mathematical facts about the number 21138600 from the Numbermatics database.
Names of 21138600
- Cardinal: 21138600 can be written as Twenty-one million, one hundred thirty-eight thousand, six hundred.
Scientific notation
- Scientific notation: 2.11386 × 107
Factors of 21138600
Divisors of 21138600
- Number of divisors d(n): 144
-
Complete list of divisors:
1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 25 28 30 35 40 42 49 50 56 60 70 75 84 98 100 105 120 140 147 150 168 175 196 200 210 245 280 294 300 350 392 420 490 525 588 600 700 719 735 840 980 1050 1176 1225 1400 1438 1470 1960 2100 2157 2450 2876 2940 3595 3675 4200 4314 4900 5033 5752 5880 7190 7350 8628 9800 10066 10785 14380 14700 15099 17256 17975 20132 21570 25165 28760 29400 30198 35231 35950 40264 43140 50330 53925 60396 70462 71900 75495 86280 100660 105693 107850 120792 125825 140924 143800 150990 176155 201320 211386 215700 251650 281848 301980 352310 377475 422772 431400 503300 528465 603960 704620 754950 845544 880775 1006600 1056930 1409240 1509900 1761550 2113860 2642325 3019800 3523100 4227720 5284650 7046200 10569300 21138600
- Sum of all divisors σ(n): 76334400
- Sum of proper divisors (its aliquot sum) s(n): 55195800
- 21138600 is an abundant number, because the sum of its proper divisors (55195800) is greater than itself. Its abundance is 34057200
Bases of 21138600
- Binary: 10100001010001100101010002
- Hexadecimal: 0x1428CA8
- Base-36: CL2NC
Squares and roots of 21138600
- 21138600 squared (211386002) is 446840409960000
- 21138600 cubed (211386003) is 9445580689980456000000
-
The
square root of 21138600 is 4597.6733246285 -
The
cube root of 21138600 is 276.4980505123
Scales and comparisons
How big is 21138600?- 21,138,600 seconds is equal to 34 weeks, 6 days, 15 hours, 50 minutes.
-
To count from 1 to 21,138,600 would take you about two days!
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 21138600 cubic inches would be around 23 feet tall.
Recreational maths with 21138600
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The information we have on file for 21138600 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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