642242250
642,242,250 is an even composite number composed of five prime numbers multiplied together.
642242250 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 642242250:
2 × 33 × 53 × 132 × 563
(2 × 3 × 3 × 3 × 5 × 5 × 5 × 13 × 13 × 563)See below for interesting mathematical facts about the number 642242250 from the Numbermatics database.
Names of 642242250
- Cardinal: 642242250 can be written as Six hundred forty-two million, two hundred forty-two thousand, two hundred fifty.
Scientific notation
- Scientific notation: 6.4224225 × 108
Factors of 642242250
Divisors of 642242250
- Number of divisors d(n): 192
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Complete list of divisors:
1 2 3 5 6 9 10 13 15 18 25 26 27 30 39 45 50 54 65 75 78 90 117 125 130 135 150 169 195 225 234 250 270 325 338 351 375 390 450 507 563 585 650 675 702 750 845 975 1014 1125 1126 1170 1350 1521 1625 1689 1690 1755 1950 2250 2535 2815 2925 3042 3250 3375 3378 3510 4225 4563 4875 5067 5070 5630 5850 6750 7319 7605 8445 8450 8775 9126 9750 10134 12675 14075 14625 14638 15201 15210 16890 17550 21125 21957 22815 25335 25350 28150 29250 30402 36595 38025 42225 42250 43875 43914 45630 50670 63375 65871 70375 73190 76005 76050 84450 87750 95147 109785 114075 126675 126750 131742 140750 152010 182975 190125 190294 197613 211125 219570 228150 253350 285441 329355 365950 380025 380250 395226 422250 475735 548925 570375 570882 633375 658710 760050 856323 914875 951470 988065 1097850 1140750 1266750 1427205 1646775 1712646 1829750 1900125 1976130 2378675 2568969 2744625 2854410 3293550 3800250 4281615 4757350 4940325 5137938 5489250 7136025 8233875 8563230 9880650 11893375 12844845 14272050 16467750 21408075 23786750 24701625 25689690 35680125 42816150 49403250 64224225 71360250 107040375 128448450 214080750 321121125 642242250
- Sum of all divisors σ(n): 1932128640
- Sum of proper divisors (its aliquot sum) s(n): 1289886390
- 642242250 is an abundant number, because the sum of its proper divisors (1289886390) is greater than itself. Its abundance is 647644140
Bases of 642242250
- Binary: 1001100100011111010110110010102
- Hexadecimal: 0x2647D6CA
- Base-36: AMDHAI
Squares and roots of 642242250
- 642242250 squared (6422422502) is 412475107685062500
- 642242250 cubed (6422422503) is 264908941228646831390625000
-
The
square root of 642242250 is 25342.4988902041 -
The
cube root of 642242250 is 862.7791157141
Scales and comparisons
How big is 642242250?- 642,242,250 seconds is equal to 20 years, 21 weeks, 6 days, 8 hours, 37 minutes, 30 seconds.
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To count from 1 to 642,242,250 would take you about thirty 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 642242250 cubic inches would be around 71.9 feet tall.
Recreational maths with 642242250
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