21217950
21,217,950 is an even composite number composed of five prime numbers multiplied together.
21217950 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred eighty divisors.
Prime factorization of 21217950:
2 × 34 × 52 × 132 × 31
(2 × 3 × 3 × 3 × 3 × 5 × 5 × 13 × 13 × 31)See below for interesting mathematical facts about the number 21217950 from the Numbermatics database.
Names of 21217950
- Cardinal: 21217950 can be written as Twenty-one million, two hundred seventeen thousand, nine hundred fifty.
Scientific notation
- Scientific notation: 2.121795 × 107
Factors of 21217950
Divisors of 21217950
- Number of divisors d(n): 180
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Complete list of divisors:
1 2 3 5 6 9 10 13 15 18 25 26 27 30 31 39 45 50 54 62 65 75 78 81 90 93 117 130 135 150 155 162 169 186 195 225 234 270 279 310 325 338 351 390 403 405 450 465 507 558 585 650 675 702 775 806 810 837 845 930 975 1014 1053 1170 1209 1350 1395 1521 1550 1674 1690 1755 1950 2015 2025 2106 2325 2418 2511 2535 2790 2925 3042 3510 3627 4030 4050 4185 4225 4563 4650 5022 5070 5239 5265 5850 6045 6975 7254 7605 8370 8450 8775 9126 10075 10478 10530 10881 12090 12555 12675 13689 13950 15210 15717 17550 18135 20150 20925 21762 22815 25110 25350 26195 26325 27378 30225 31434 32643 36270 38025 41850 45630 47151 52390 52650 54405 60450 62775 65286 68445 76050 78585 90675 94302 108810 114075 125550 130975 136890 141453 157170 163215 181350 228150 235755 261950 272025 282906 326430 342225 392925 424359 471510 544050 684450 707265 785850 816075 848718 1178775 1414530 1632150 2121795 2357550 3536325 4243590 7072650 10608975 21217950
- Sum of all divisors σ(n): 65897568
- Sum of proper divisors (its aliquot sum) s(n): 44679618
- 21217950 is an abundant number, because the sum of its proper divisors (44679618) is greater than itself. Its abundance is 23461668
Bases of 21217950
- Binary: 10100001111000010100111102
- Hexadecimal: 0x143C29E
- Base-36: CMRVI
Squares and roots of 21217950
- 21217950 squared (212179502) is 450201402202500
- 21217950 cubed (212179503) is 9552350841862534875000
-
The
square root of 21217950 is 4606.2946062969 -
The
cube root of 21217950 is 276.8435909693
Scales and comparisons
How big is 21217950?- 21,217,950 seconds is equal to 35 weeks, 13 hours, 52 minutes, 30 seconds.
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To count from 1 to 21,217,950 would take you about four 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 21217950 cubic inches would be around 23.1 feet tall.
Recreational maths with 21217950
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The information we have on file for 21217950 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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