21300720
21,300,720 is an even composite number composed of six prime numbers multiplied together.
21300720 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred sixty divisors.
Prime factorization of 21300720:
24 × 3 × 5 × 7 × 31 × 409
(2 × 2 × 2 × 2 × 3 × 5 × 7 × 31 × 409)See below for interesting mathematical facts about the number 21300720 from the Numbermatics database.
Names of 21300720
- Cardinal: 21300720 can be written as Twenty-one million, three hundred thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 2.130072 × 107
Factors of 21300720
Divisors of 21300720
- Number of divisors d(n): 160
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Complete list of divisors:
1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 31 35 40 42 48 56 60 62 70 80 84 93 105 112 120 124 140 155 168 186 210 217 240 248 280 310 336 372 409 420 434 465 496 560 620 651 744 818 840 868 930 1085 1227 1240 1302 1488 1636 1680 1736 1860 2045 2170 2454 2480 2604 2863 3255 3272 3472 3720 4090 4340 4908 5208 5726 6135 6510 6544 7440 8180 8589 8680 9816 10416 11452 12270 12679 13020 14315 16360 17178 17360 19632 22904 24540 25358 26040 28630 32720 34356 38037 42945 45808 49080 50716 52080 57260 63395 68712 76074 85890 88753 98160 101432 114520 126790 137424 152148 171780 177506 190185 202864 229040 253580 266259 304296 343560 355012 380370 443765 507160 532518 608592 687120 710024 760740 887530 1014320 1065036 1331295 1420048 1521480 1775060 2130072 2662590 3042960 3550120 4260144 5325180 7100240 10650360 21300720
- Sum of all divisors σ(n): 78090240
- Sum of proper divisors (its aliquot sum) s(n): 56789520
- 21300720 is an abundant number, because the sum of its proper divisors (56789520) is greater than itself. Its abundance is 35488800
Bases of 21300720
- Binary: 10100010100000101111100002
- Hexadecimal: 0x14505F0
- Base-36: COJQO
Squares and roots of 21300720
- 21300720 squared (213007202) is 453720672518400
- 21300720 cubed (213007203) is 9664577003526133248000
-
The
square root of 21300720 is 4615.2703062767 -
The
cube root of 21300720 is 277.2031075197
Scales and comparisons
How big is 21300720?- 21,300,720 seconds is equal to 35 weeks, 1 day, 12 hours, 52 minutes.
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To count from 1 to 21,300,720 would take you about five 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 21300720 cubic inches would be around 23.1 feet tall.
Recreational maths with 21300720
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The information we have on file for 21300720 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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