21265920
21,265,920 is an even composite number composed of five prime numbers multiplied together.
21265920 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred forty divisors.
Prime factorization of 21265920:
29 × 32 × 5 × 13 × 71
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 13 × 71)See below for interesting mathematical facts about the number 21265920 from the Numbermatics database.
Names of 21265920
- Cardinal: 21265920 can be written as Twenty-one million, two hundred sixty-five thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 2.126592 × 107
Factors of 21265920
Divisors of 21265920
- Number of divisors d(n): 240
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 30 32 36 39 40 45 48 52 60 64 65 71 72 78 80 90 96 104 117 120 128 130 142 144 156 160 180 192 195 208 213 234 240 256 260 284 288 312 320 355 360 384 390 416 426 468 480 512 520 568 576 585 624 639 640 710 720 768 780 832 852 923 936 960 1040 1065 1136 1152 1170 1248 1278 1280 1420 1440 1536 1560 1664 1704 1846 1872 1920 2080 2130 2272 2304 2340 2496 2556 2560 2769 2840 2880 3120 3195 3328 3408 3692 3744 3840 4160 4260 4544 4608 4615 4680 4992 5112 5538 5680 5760 6240 6390 6656 6816 7384 7488 7680 8307 8320 8520 9088 9230 9360 9984 10224 11076 11360 11520 12480 12780 13632 13845 14768 14976 16614 16640 17040 18176 18460 18720 19968 20448 22152 22720 23040 24960 25560 27264 27690 29536 29952 33228 33280 34080 36352 36920 37440 40896 41535 44304 45440 49920 51120 54528 55380 59072 59904 66456 68160 73840 74880 81792 83070 88608 90880 99840 102240 109056 110760 118144 132912 136320 147680 149760 163584 166140 177216 181760 204480 221520 236288 265824 272640 295360 299520 327168 332280 354432 408960 443040 472576 531648 545280 590720 664560 708864 817920 886080 1063296 1181440 1329120 1417728 1635840 1772160 2126592 2362880 2658240 3544320 4253184 5316480 7088640 10632960 21265920
- Sum of all divisors σ(n): 80432352
- Sum of proper divisors (its aliquot sum) s(n): 59166432
- 21265920 is an abundant number, because the sum of its proper divisors (59166432) is greater than itself. Its abundance is 37900512
Bases of 21265920
- Binary: 10100010001111110000000002
- Hexadecimal: 0x1447E00
- Base-36: CNSW0
Squares and roots of 21265920
- 21265920 squared (212659202) is 452239353446400
- 21265920 cubed (212659203) is 9617285911242866688000
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The
square root of 21265920 is 4611.4986717985 -
The
cube root of 21265920 is 277.0520652651
Scales and comparisons
How big is 21265920?- 21,265,920 seconds is equal to 35 weeks, 1 day, 3 hours, 12 minutes.
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To count from 1 to 21,265,920 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 21265920 cubic inches would be around 23.1 feet tall.
Recreational maths with 21265920
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The information we have on file for 21265920 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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