208428864
208,428,864 is an even composite number composed of four prime numbers multiplied together.
208428864 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of fifty-six divisors.
Prime factorization of 208428864:
26 × 3 × 7 × 155081
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 7 × 155081)See below for interesting mathematical facts about the number 208428864 from the Numbermatics database.
Names of 208428864
- Cardinal: 208428864 can be written as Two hundred eight million, four hundred twenty-eight thousand, eight hundred sixty-four.
Scientific notation
- Scientific notation: 2.08428864 × 108
Factors of 208428864
Divisors of 208428864
- Number of divisors d(n): 56
-
Complete list of divisors:
1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 112 168 192 224 336 448 672 1344 155081 310162 465243 620324 930486 1085567 1240648 1860972 2171134 2481296 3256701 3721944 4342268 4962592 6513402 7443888 8684536 9925184 13026804 14887776 17369072 26053608 29775552 34738144 52107216 69476288 104214432 208428864
- Sum of all divisors σ(n): 630253248
- Sum of proper divisors (its aliquot sum) s(n): 421824384
- 208428864 is an abundant number, because the sum of its proper divisors (421824384) is greater than itself. Its abundance is 213395520
Bases of 208428864
- Binary: 11000110110001011111010000002
- Hexadecimal: 0xC6C5F40
- Base-36: 3G3CQO
Squares and roots of 208428864
- 208428864 squared (2084288642) is 43442591348330496
- 208428864 cubed (2084288643) is 9054689963948753577836544
-
The
square root of 208428864 is 14437.0656298293 -
The
cube root of 208428864 is 592.9061482057
Scales and comparisons
How big is 208428864?- 208,428,864 seconds is equal to 6 years, 32 weeks, 4 days, 8 hours, 54 minutes, 24 seconds.
-
To count from 1 to 208,428,864 would take you about nine 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 208428864 cubic inches would be around 49.4 feet tall.
Recreational maths with 208428864
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