21241920
21,241,920 is an even composite number composed of six prime numbers multiplied together.
21241920 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred twenty-four divisors.
Prime factorization of 21241920:
26 × 3 × 5 × 7 × 29 × 109
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 7 × 29 × 109)See below for interesting mathematical facts about the number 21241920 from the Numbermatics database.
Names of 21241920
- Cardinal: 21241920 can be written as Twenty-one million, two hundred forty-one thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 2.124192 × 107
Factors of 21241920
Divisors of 21241920
- Number of divisors d(n): 224
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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 29 30 32 35 40 42 48 56 58 60 64 70 80 84 87 96 105 109 112 116 120 140 145 160 168 174 192 203 210 218 224 232 240 280 290 320 327 336 348 406 420 435 436 448 464 480 545 560 580 609 654 672 696 763 812 840 870 872 928 960 1015 1090 1120 1160 1218 1308 1344 1392 1526 1624 1635 1680 1740 1744 1856 2030 2180 2240 2289 2320 2436 2616 2784 3045 3052 3161 3248 3270 3360 3480 3488 3815 4060 4360 4578 4640 4872 5232 5568 6090 6104 6322 6496 6540 6720 6960 6976 7630 8120 8720 9156 9280 9483 9744 10464 11445 12180 12208 12644 12992 13080 13920 15260 15805 16240 17440 18312 18966 19488 20928 22127 22890 24360 24416 25288 26160 27840 30520 31610 32480 34880 36624 37932 38976 44254 45780 47415 48720 48832 50576 52320 61040 63220 64960 66381 73248 75864 88508 91560 94830 97440 101152 104640 110635 122080 126440 132762 146496 151728 177016 183120 189660 194880 202304 221270 244160 252880 265524 303456 331905 354032 366240 379320 442540 505760 531048 606912 663810 708064 732480 758640 885080 1011520 1062096 1327620 1416128 1517280 1770160 2124192 2655240 3034560 3540320 4248384 5310480 7080640 10620960 21241920
- Sum of all divisors σ(n): 80467200
- Sum of proper divisors (its aliquot sum) s(n): 59225280
- 21241920 is an abundant number, because the sum of its proper divisors (59225280) is greater than itself. Its abundance is 37983360
Bases of 21241920
- Binary: 10100010000100000010000002
- Hexadecimal: 0x1442040
- Base-36: CNADC
Squares and roots of 21241920
- 21241920 squared (212419202) is 451219165286400
- 21241920 cubed (212419203) is 9584761411480485888000
-
The
square root of 21241920 is 4608.8957462715 -
The
cube root of 21241920 is 276.9478021607
Scales and comparisons
How big is 21241920?- 21,241,920 seconds is equal to 35 weeks, 20 hours, 32 minutes.
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To count from 1 to 21,241,920 would take you about four 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 21241920 cubic inches would be around 23.1 feet tall.
Recreational maths with 21241920
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