221290720
221,290,720 is an even composite number composed of five prime numbers multiplied together.
221290720 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 221290720:
25 × 5 × 7 × 19 × 10399
(2 × 2 × 2 × 2 × 2 × 5 × 7 × 19 × 10399)See below for interesting mathematical facts about the number 221290720 from the Numbermatics database.
Names of 221290720
- Cardinal: 221290720 can be written as Two hundred twenty-one million, two hundred ninety thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 2.2129072 × 108
Factors of 221290720
Divisors of 221290720
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 4 5 7 8 10 14 16 19 20 28 32 35 38 40 56 70 76 80 95 112 133 140 152 160 190 224 266 280 304 380 532 560 608 665 760 1064 1120 1330 1520 2128 2660 3040 4256 5320 10399 10640 20798 21280 41596 51995 72793 83192 103990 145586 166384 197581 207980 291172 332768 363965 395162 415960 582344 727930 790324 831920 987905 1164688 1383067 1455860 1580648 1663840 1975810 2329376 2766134 2911720 3161296 3951620 5532268 5823440 6322592 6915335 7903240 11064536 11646880 13830670 15806480 22129072 27661340 31612960 44258144 55322680 110645360 221290720
- Sum of all divisors σ(n): 628992000
- Sum of proper divisors (its aliquot sum) s(n): 407701280
- 221290720 is an abundant number, because the sum of its proper divisors (407701280) is greater than itself. Its abundance is 186410560
Bases of 221290720
- Binary: 11010011000010100000111000002
- Hexadecimal: 0xD30A0E0
- Base-36: 3NR10G
Squares and roots of 221290720
- 221290720 squared (2212907202) is 48969582758118400
- 221290720 cubed (2212907203) is 10836514226643606581248000
-
The
square root of 221290720 is 14875.8435054957 -
The
cube root of 221290720 is 604.8593530489
Scales and comparisons
How big is 221290720?- 221,290,720 seconds is equal to 7 years, 1 week, 6 days, 5 hours, 38 minutes, 40 seconds.
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To count from 1 to 221,290,720 would take you about ten years!
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 221290720 cubic inches would be around 50.4 feet tall.
Recreational maths with 221290720
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