21553740
21,553,740 is an even composite number composed of six prime numbers multiplied together.
21553740 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 21553740:
22 × 32 × 5 × 13 × 61 × 151
(2 × 2 × 3 × 3 × 5 × 13 × 61 × 151)See below for interesting mathematical facts about the number 21553740 from the Numbermatics database.
Names of 21553740
- Cardinal: 21553740 can be written as Twenty-one million, five hundred fifty-three thousand, seven hundred forty.
Scientific notation
- Scientific notation: 2.155374 × 107
Factors of 21553740
Divisors of 21553740
- Number of divisors d(n): 144
-
Complete list of divisors:
1 2 3 4 5 6 9 10 12 13 15 18 20 26 30 36 39 45 52 60 61 65 78 90 117 122 130 151 156 180 183 195 234 244 260 302 305 366 390 453 468 549 585 604 610 732 755 780 793 906 915 1098 1170 1220 1359 1510 1586 1812 1830 1963 2196 2265 2340 2379 2718 2745 3020 3172 3660 3926 3965 4530 4758 5436 5490 5889 6795 7137 7852 7930 9060 9211 9516 9815 10980 11778 11895 13590 14274 15860 17667 18422 19630 23556 23790 27180 27633 28548 29445 35334 35685 36844 39260 46055 47580 55266 58890 70668 71370 82899 88335 92110 110532 117780 119743 138165 142740 165798 176670 184220 239486 276330 331596 353340 359229 414495 478972 552660 598715 718458 828990 1077687 1197430 1436916 1657980 1796145 2155374 2394860 3592290 4310748 5388435 7184580 10776870 21553740
- Sum of all divisors σ(n): 72037056
- Sum of proper divisors (its aliquot sum) s(n): 50483316
- 21553740 is an abundant number, because the sum of its proper divisors (50483316) is greater than itself. Its abundance is 28929576
Bases of 21553740
- Binary: 10100100011100010010011002
- Hexadecimal: 0x148E24C
- Base-36: CTYZ0
Squares and roots of 21553740
- 21553740 squared (215537402) is 464563707987600
- 21553740 cubed (215537403) is 10013085375400653624000
-
The
square root of 21553740 is 4642.6005643389 -
The
cube root of 21553740 is 278.2963731943
Scales and comparisons
How big is 21553740?- 21,553,740 seconds is equal to 35 weeks, 4 days, 11 hours, 9 minutes.
-
To count from 1 to 21,553,740 would take you about three 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 21553740 cubic inches would be around 23.2 feet tall.
Recreational maths with 21553740
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The information we have on file for 21553740 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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