1221000
1,221,000 is an even composite number composed of five prime numbers multiplied together.
1221000 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 1221000:
23 × 3 × 53 × 11 × 37
(2 × 2 × 2 × 3 × 5 × 5 × 5 × 11 × 37)See below for interesting mathematical facts about the number 1221000 from the Numbermatics database.
Names of 1221000
- Cardinal: 1221000 can be written as One million, two hundred twenty-one thousand.
Scientific notation
- Scientific notation: 1.221 × 106
Factors of 1221000
Divisors of 1221000
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 3 4 5 6 8 10 11 12 15 20 22 24 25 30 33 37 40 44 50 55 60 66 74 75 88 100 110 111 120 125 132 148 150 165 185 200 220 222 250 264 275 296 300 330 370 375 407 440 444 500 550 555 600 660 740 750 814 825 888 925 1000 1100 1110 1221 1320 1375 1480 1500 1628 1650 1850 2035 2200 2220 2442 2750 2775 3000 3256 3300 3700 4070 4125 4440 4625 4884 5500 5550 6105 6600 7400 8140 8250 9250 9768 10175 11000 11100 12210 13875 16280 16500 18500 20350 22200 24420 27750 30525 33000 37000 40700 48840 50875 55500 61050 81400 101750 111000 122100 152625 203500 244200 305250 407000 610500 1221000
- Sum of all divisors σ(n): 4268160
- Sum of proper divisors (its aliquot sum) s(n): 3047160
- 1221000 is an abundant number, because the sum of its proper divisors (3047160) is greater than itself. Its abundance is 1826160
Bases of 1221000
- Binary: 1001010100001100010002
- Hexadecimal: 0x12A188
- Base-36: Q64O
Squares and roots of 1221000
- 1221000 squared (12210002) is 1490841000000
- 1221000 cubed (12210003) is 1820316861000000000
-
The
square root of 1221000 is 1104.9886877249 -
The
cube root of 1221000 is 106.8821598431
Scales and comparisons
How big is 1221000?- 1,221,000 seconds is equal to 2 weeks, 3 hours, 10 minutes.
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To count from 1 to 1,221,000 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 1221000 cubic inches would be around 8.9 feet tall.
Recreational maths with 1221000
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The information we have on file for 1221000 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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