21240000
21,240,000 is an even composite number composed of four prime numbers multiplied together.
21240000 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 21240000:
26 × 32 × 54 × 59
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 5 × 5 × 5 × 59)See below for interesting mathematical facts about the number 21240000 from the Numbermatics database.
Names of 21240000
- Cardinal: 21240000 can be written as Twenty-one million, two hundred forty thousand.
Scientific notation
- Scientific notation: 2.124 × 107
Factors of 21240000
Divisors of 21240000
- 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 20 24 25 30 32 36 40 45 48 50 59 60 64 72 75 80 90 96 100 118 120 125 144 150 160 177 180 192 200 225 236 240 250 288 295 300 320 354 360 375 400 450 472 480 500 531 576 590 600 625 708 720 750 800 885 900 944 960 1000 1062 1125 1180 1200 1250 1416 1440 1475 1500 1600 1770 1800 1875 1888 2000 2124 2250 2360 2400 2500 2655 2832 2880 2950 3000 3540 3600 3750 3776 4000 4248 4425 4500 4720 4800 5000 5310 5625 5664 5900 6000 7080 7200 7375 7500 8000 8496 8850 9000 9440 10000 10620 11250 11328 11800 12000 13275 14160 14400 14750 15000 16992 17700 18000 18880 20000 21240 22125 22500 23600 24000 26550 28320 29500 30000 33984 35400 36000 36875 40000 42480 44250 45000 47200 53100 56640 59000 60000 66375 70800 72000 73750 84960 88500 90000 94400 106200 110625 118000 120000 132750 141600 147500 169920 177000 180000 212400 221250 236000 265500 283200 295000 331875 354000 360000 424800 442500 472000 531000 590000 663750 708000 849600 885000 1062000 1180000 1327500 1416000 1770000 2124000 2360000 2655000 3540000 4248000 5310000 7080000 10620000 21240000
- Sum of all divisors σ(n): 77365860
- Sum of proper divisors (its aliquot sum) s(n): 56125860
- 21240000 is an abundant number, because the sum of its proper divisors (56125860) is greater than itself. Its abundance is 34885860
Bases of 21240000
- Binary: 10100010000011000110000002
- Hexadecimal: 0x14418C0
- Base-36: CN8W0
Squares and roots of 21240000
- 21240000 squared (212400002) is 451137600000000
- 21240000 cubed (212400003) is 9582162624000000000000
-
The
square root of 21240000 is 4608.6874487211 -
The
cube root of 21240000 is 276.9394577205
Scales and comparisons
How big is 21240000?- 21,240,000 seconds is equal to 35 weeks, 20 hours.
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To count from 1 to 21,240,000 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 21240000 cubic inches would be around 23.1 feet tall.
Recreational maths with 21240000
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