81375000
81,375,000 is an even composite number composed of five prime numbers multiplied together.
81375000 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred twenty-four divisors.
Prime factorization of 81375000:
23 × 3 × 56 × 7 × 31
(2 × 2 × 2 × 3 × 5 × 5 × 5 × 5 × 5 × 5 × 7 × 31)See below for interesting mathematical facts about the number 81375000 from the Numbermatics database.
Names of 81375000
- Cardinal: 81375000 can be written as Eighty-one million, three hundred seventy-five thousand.
Scientific notation
- Scientific notation: 8.1375 × 107
Factors of 81375000
Divisors of 81375000
- 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 20 21 24 25 28 30 31 35 40 42 50 56 60 62 70 75 84 93 100 105 120 124 125 140 150 155 168 175 186 200 210 217 248 250 280 300 310 350 372 375 420 434 465 500 525 600 620 625 651 700 744 750 775 840 868 875 930 1000 1050 1085 1240 1250 1302 1400 1500 1550 1736 1750 1860 1875 2100 2170 2325 2500 2604 2625 3000 3100 3125 3255 3500 3720 3750 3875 4200 4340 4375 4650 5000 5208 5250 5425 6200 6250 6510 7000 7500 7750 8680 8750 9300 9375 10500 10850 11625 12500 13020 13125 15000 15500 15625 16275 17500 18600 18750 19375 21000 21700 21875 23250 25000 26040 26250 27125 31000 31250 32550 35000 37500 38750 43400 43750 46500 46875 52500 54250 58125 62500 65100 65625 75000 77500 81375 87500 93000 93750 96875 105000 108500 109375 116250 125000 130200 131250 135625 155000 162750 175000 187500 193750 217000 218750 232500 262500 271250 290625 325500 328125 375000 387500 406875 437500 465000 484375 525000 542500 581250 651000 656250 678125 775000 813750 875000 968750 1085000 1162500 1312500 1356250 1453125 1627500 1937500 2034375 2325000 2625000 2712500 2906250 3255000 3390625 3875000 4068750 5425000 5812500 6781250 8137500 10171875 11625000 13562500 16275000 20343750 27125000 40687500 81375000
- Sum of all divisors σ(n): 299996160
- Sum of proper divisors (its aliquot sum) s(n): 218621160
- 81375000 is an abundant number, because the sum of its proper divisors (218621160) is greater than itself. Its abundance is 137246160
Bases of 81375000
- Binary: 1001101100110101111000110002
- Hexadecimal: 0x4D9AF18
- Base-36: 1CG5CO
Squares and roots of 81375000
- 81375000 squared (813750002) is 6621890625000000
- 81375000 cubed (813750003) is 538856349609375000000000
-
The
square root of 81375000 is 9020.8092763343 -
The
cube root of 81375000 is 433.3415514549
Scales and comparisons
How big is 81375000?- 81,375,000 seconds is equal to 2 years, 30 weeks, 3 days, 20 hours, 10 minutes.
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To count from 1 to 81,375,000 would take you about three 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 81375000 cubic inches would be around 36.1 feet tall.
Recreational maths with 81375000
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The information we have on file for 81375000 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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