21053520
21,053,520 is an even composite number composed of four prime numbers multiplied together.
21053520 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of two hundred ten divisors.
Prime factorization of 21053520:
24 × 36 × 5 × 192
(2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 5 × 19 × 19)See below for interesting mathematical facts about the number 21053520 from the Numbermatics database.
Names of 21053520
- Cardinal: 21053520 can be written as Twenty-one million, fifty-three thousand, five hundred twenty.
Scientific notation
- Scientific notation: 2.105352 × 107
Factors of 21053520
Divisors of 21053520
- Number of divisors d(n): 210
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 19 20 24 27 30 36 38 40 45 48 54 57 60 72 76 80 81 90 95 108 114 120 135 144 152 162 171 180 190 216 228 240 243 270 285 304 324 342 360 361 380 405 432 456 486 513 540 570 648 684 720 722 729 760 810 855 912 972 1026 1080 1083 1140 1215 1296 1368 1444 1458 1520 1539 1620 1710 1805 1944 2052 2160 2166 2280 2430 2565 2736 2888 2916 3078 3240 3249 3420 3610 3645 3888 4104 4332 4560 4617 4860 5130 5415 5776 5832 6156 6480 6498 6840 7220 7290 7695 8208 8664 9234 9720 9747 10260 10830 11664 12312 12996 13680 13851 14440 14580 15390 16245 17328 18468 19440 19494 20520 21660 23085 24624 25992 27702 28880 29160 29241 30780 32490 36936 38988 41040 43320 46170 48735 51984 55404 58320 58482 61560 64980 69255 73872 77976 86640 87723 92340 97470 110808 116964 123120 129960 138510 146205 155952 175446 184680 194940 221616 233928 259920 263169 277020 292410 350892 369360 389880 438615 467856 526338 554040 584820 701784 779760 877230 1052676 1108080 1169640 1315845 1403568 1754460 2105352 2339280 2631690 3508920 4210704 5263380 7017840 10526760 21053520
- Sum of all divisors σ(n): 77456538
- Sum of proper divisors (its aliquot sum) s(n): 56403018
- 21053520 is an abundant number, because the sum of its proper divisors (56403018) is greater than itself. Its abundance is 35349498
Bases of 21053520
- Binary: 10100000101000000010100002
- Hexadecimal: 0x1414050
- Base-36: CJ900
Squares and roots of 21053520
- 21053520 squared (210535202) is 443250704390400
- 21053520 cubed (210535203) is 9331987569897374208000
-
The
square root of 21053520 is 4588.4114898295 -
The
cube root of 21053520 is 276.1265959883
Scales and comparisons
How big is 21053520?- 21,053,520 seconds is equal to 34 weeks, 5 days, 16 hours, 12 minutes.
-
To count from 1 to 21,053,520 would take you about twelve 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 21053520 cubic inches would be around 23 feet tall.
Recreational maths with 21053520
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