21474720
21,474,720 is an even composite number composed of four prime numbers multiplied together.
21474720 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 21474720:
25 × 34 × 5 × 1657
(2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 5 × 1657)See below for interesting mathematical facts about the number 21474720 from the Numbermatics database.
Names of 21474720
- Cardinal: 21474720 can be written as Twenty-one million, four hundred seventy-four thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 2.147472 × 107
Factors of 21474720
Divisors of 21474720
- Number of divisors d(n): 120
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 72 80 81 90 96 108 120 135 144 160 162 180 216 240 270 288 324 360 405 432 480 540 648 720 810 864 1080 1296 1440 1620 1657 2160 2592 3240 3314 4320 4971 6480 6628 8285 9942 12960 13256 14913 16570 19884 24855 26512 29826 33140 39768 44739 49710 53024 59652 66280 74565 79536 89478 99420 119304 132560 134217 149130 159072 178956 198840 223695 238608 265120 268434 298260 357912 397680 447390 477216 536868 596520 671085 715824 795360 894780 1073736 1193040 1342170 1431648 1789560 2147472 2386080 2684340 3579120 4294944 5368680 7158240 10737360 21474720
- Sum of all divisors σ(n): 75833604
- Sum of proper divisors (its aliquot sum) s(n): 54358884
- 21474720 is an abundant number, because the sum of its proper divisors (54358884) is greater than itself. Its abundance is 32884164
Bases of 21474720
- Binary: 10100011110101101101000002
- Hexadecimal: 0x147ADA0
- Base-36: CSA00
Squares and roots of 21474720
- 21474720 squared (214747202) is 461163599078400
- 21474720 cubed (214747203) is 9903359164400898048000
-
The
square root of 21474720 is 4634.0824334489 -
The
cube root of 21474720 is 277.9558613913
Scales and comparisons
How big is 21474720?- 21,474,720 seconds is equal to 35 weeks, 3 days, 13 hours, 12 minutes.
-
To count from 1 to 21,474,720 would take you about nineteen hours!
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 21474720 cubic inches would be around 23.2 feet tall.
Recreational maths with 21474720
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The information we have on file for 21474720 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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