21980000
21,980,000 is an even composite number composed of four prime numbers multiplied together.
21980000 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred twenty divisors.
Prime factorization of 21980000:
25 × 54 × 7 × 157
(2 × 2 × 2 × 2 × 2 × 5 × 5 × 5 × 5 × 7 × 157)See below for interesting mathematical facts about the number 21980000 from the Numbermatics database.
Names of 21980000
- Cardinal: 21980000 can be written as Twenty-one million, nine hundred eighty thousand.
Scientific notation
- Scientific notation: 2.198 × 107
Factors of 21980000
Divisors of 21980000
- Number of divisors d(n): 120
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Complete list of divisors:
1 2 4 5 7 8 10 14 16 20 25 28 32 35 40 50 56 70 80 100 112 125 140 157 160 175 200 224 250 280 314 350 400 500 560 625 628 700 785 800 875 1000 1099 1120 1250 1256 1400 1570 1750 2000 2198 2500 2512 2800 3140 3500 3925 4000 4375 4396 5000 5024 5495 5600 6280 7000 7850 8750 8792 10000 10990 12560 14000 15700 17500 17584 19625 20000 21980 25120 27475 28000 31400 35000 35168 39250 43960 54950 62800 70000 78500 87920 98125 109900 125600 137375 140000 157000 175840 196250 219800 274750 314000 392500 439600 549500 628000 686875 785000 879200 1099000 1373750 1570000 2198000 2747500 3140000 4396000 5495000 10990000 21980000
- Sum of all divisors σ(n): 62192592
- Sum of proper divisors (its aliquot sum) s(n): 40212592
- 21980000 is an abundant number, because the sum of its proper divisors (40212592) is greater than itself. Its abundance is 18232592
Bases of 21980000
- Binary: 10100111101100011011000002
- Hexadecimal: 0x14F6360
- Base-36: D33VK
Squares and roots of 21980000
- 21980000 squared (219800002) is 483120400000000
- 21980000 cubed (219800003) is 10618986392000000000000
-
The
square root of 21980000 is 4688.2832678925 -
The
cube root of 21980000 is 280.1189970395
Scales and comparisons
How big is 21980000?- 21,980,000 seconds is equal to 36 weeks, 2 days, 9 hours, 33 minutes, 20 seconds.
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To count from 1 to 21,980,000 would take you about two 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 21980000 cubic inches would be around 23.3 feet tall.
Recreational maths with 21980000
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The information we have on file for 21980000 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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