138915000
138,915,000 is an even composite number composed of four prime numbers multiplied together.
138915000 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of four hundred divisors.
Prime factorization of 138915000:
23 × 34 × 54 × 73
(2 × 2 × 2 × 3 × 3 × 3 × 3 × 5 × 5 × 5 × 5 × 7 × 7 × 7)See below for interesting mathematical facts about the number 138915000 from the Numbermatics database.
Names of 138915000
- Cardinal: 138915000 can be written as One hundred thirty-eight million, nine hundred fifteen thousand.
Scientific notation
- Scientific notation: 1.38915 × 108
Factors of 138915000
Divisors of 138915000
- Number of divisors d(n): 400
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Complete list of divisors:
1 2 3 4 5 6 7 8 9 10 12 14 15 18 20 21 24 25 27 28 30 35 36 40 42 45 49 50 54 56 60 63 70 72 75 81 84 90 98 100 105 108 120 125 126 135 140 147 150 162 168 175 180 189 196 200 210 216 225 245 250 252 270 280 294 300 315 324 343 350 360 375 378 392 405 420 441 450 490 500 504 525 540 567 588 600 625 630 648 675 686 700 735 750 756 810 840 875 882 900 945 980 1000 1029 1050 1080 1125 1134 1176 1225 1250 1260 1323 1350 1372 1400 1470 1500 1512 1575 1620 1715 1750 1764 1800 1875 1890 1960 2025 2058 2100 2205 2250 2268 2450 2500 2520 2625 2646 2700 2744 2835 2940 3000 3087 3150 3240 3375 3430 3500 3528 3675 3750 3780 3969 4050 4116 4200 4375 4410 4500 4536 4725 4900 5000 5145 5250 5292 5400 5625 5670 5880 6125 6174 6300 6615 6750 6860 7000 7350 7500 7560 7875 7938 8100 8232 8575 8750 8820 9000 9261 9450 9800 10125 10290 10500 10584 11025 11250 11340 12250 12348 12600 13125 13230 13500 13720 14175 14700 15000 15435 15750 15876 16200 16875 17150 17500 17640 18375 18522 18900 19845 20250 20580 21000 22050 22500 22680 23625 24500 24696 25725 26250 26460 27000 27783 28350 29400 30625 30870 31500 31752 33075 33750 34300 35000 36750 37044 37800 39375 39690 40500 41160 42875 44100 45000 46305 47250 49000 50625 51450 52500 52920 55125 55566 56700 61250 61740 63000 66150 67500 68600 70875 73500 74088 77175 78750 79380 81000 85750 88200 91875 92610 94500 99225 101250 102900 105000 110250 111132 113400 118125 122500 123480 128625 132300 135000 138915 141750 147000 154350 157500 158760 165375 171500 183750 185220 189000 198450 202500 205800 214375 220500 222264 231525 236250 245000 257250 264600 275625 277830 283500 308700 315000 330750 343000 354375 367500 370440 385875 396900 405000 428750 441000 463050 472500 496125 514500 551250 555660 567000 617400 643125 661500 694575 708750 735000 771750 793800 826875 857500 926100 945000 992250 1029000 1102500 1111320 1157625 1286250 1323000 1389150 1417500 1543500 1653750 1715000 1852200 1929375 1984500 2205000 2315250 2480625 2572500 2778300 2835000 3087000 3307500 3472875 3858750 3969000 4630500 4961250 5145000 5556600 5788125 6615000 6945750 7717500 9261000 9922500 11576250 13891500 15435000 17364375 19845000 23152500 27783000 34728750 46305000 69457500 138915000
- Sum of all divisors σ(n): 567006000
- Sum of proper divisors (its aliquot sum) s(n): 428091000
- 138915000 is an abundant number, because the sum of its proper divisors (428091000) is greater than itself. Its abundance is 289176000
Bases of 138915000
- Binary: 10000100011110101100101110002
- Hexadecimal: 0x847ACB8
- Base-36: 2APFI0
Squares and roots of 138915000
- 138915000 squared (1389150002) is 19297377225000000
- 138915000 cubed (1389150003) is 2680695157210875000000000
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The
square root of 138915000 is 11786.2207683379 -
The
cube root of 138915000 is 517.9045356093
Scales and comparisons
How big is 138915000?- 138,915,000 seconds is equal to 4 years, 21 weeks, 4 days, 19 hours, 30 minutes.
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To count from 1 to 138,915,000 would take you about six years!
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 138915000 cubic inches would be around 43.2 feet tall.
Recreational maths with 138915000
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