394189642
394,189,642 is an even composite number composed of five prime numbers multiplied together.
394189642 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 394189642:
2 × 7 × 11 × 173 × 521
(2 × 7 × 11 × 17 × 17 × 17 × 521)See below for interesting mathematical facts about the number 394189642 from the Numbermatics database.
Names of 394189642
- Cardinal: 394189642 can be written as Three hundred ninety-four million, one hundred eighty-nine thousand, six hundred forty-two.
Scientific notation
- Scientific notation: 3.94189642 × 108
Factors of 394189642
Divisors of 394189642
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 7 11 14 17 22 34 77 119 154 187 238 289 374 521 578 1042 1309 2023 2618 3179 3647 4046 4913 5731 6358 7294 8857 9826 11462 17714 22253 34391 40117 44506 54043 61999 68782 80234 97427 108086 123998 150569 194854 301138 378301 681989 756602 1053983 1363978 1656259 2107966 2559673 3312518 5119346 11593813 17917711 23187626 28156403 35835422 56312806 197094821 394189642
- Sum of all divisors σ(n): 784753920
- Sum of proper divisors (its aliquot sum) s(n): 390564278
- 394189642 is a deficient number, because the sum of its proper divisors (390564278) is less than itself. Its deficiency is 3625364
Bases of 394189642
- Binary: 101110111111011011011010010102
- Hexadecimal: 0x177EDB4A
- Base-36: 6IOUOA
Squares and roots of 394189642
- 394189642 squared (3941896422) is 155385473860088164
- 394189642 cubed (3941896423) is 61251344312908511455597288
-
The
square root of 394189642 is 19854.2096795617 -
The
cube root of 394189642 is 733.2212944997
Scales and comparisons
How big is 394189642?- 394,189,642 seconds is equal to 12 years, 27 weeks, 5 days, 9 hours, 7 minutes, 22 seconds.
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To count from 1 to 394,189,642 would take you about eighteen 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 394189642 cubic inches would be around 61.1 feet tall.
Recreational maths with 394189642
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