128985600
128,985,600 is an even composite number composed of four prime numbers multiplied together.
128985600 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred twenty divisors.
Prime factorization of 128985600:
29 × 3 × 52 × 3359
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 5 × 3359)See below for interesting mathematical facts about the number 128985600 from the Numbermatics database.
Names of 128985600
- Cardinal: 128985600 can be written as One hundred twenty-eight million, nine hundred eighty-five thousand, six hundred.
Scientific notation
- Scientific notation: 1.289856 × 108
Factors of 128985600
Divisors of 128985600
- Number of divisors d(n): 120
-
Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 48 50 60 64 75 80 96 100 120 128 150 160 192 200 240 256 300 320 384 400 480 512 600 640 768 800 960 1200 1280 1536 1600 1920 2400 2560 3200 3359 3840 4800 6400 6718 7680 9600 10077 12800 13436 16795 19200 20154 26872 33590 38400 40308 50385 53744 67180 80616 83975 100770 107488 134360 161232 167950 201540 214976 251925 268720 322464 335900 403080 429952 503850 537440 644928 671800 806160 859904 1007700 1074880 1289856 1343600 1612320 1719808 2015400 2149760 2579712 2687200 3224640 4030800 4299520 5159424 5374400 6449280 8061600 8599040 10748800 12898560 16123200 21497600 25797120 32246400 42995200 64492800 128985600
- Sum of all divisors σ(n): 426222720
- Sum of proper divisors (its aliquot sum) s(n): 297237120
- 128985600 is an abundant number, because the sum of its proper divisors (297237120) is greater than itself. Its abundance is 168251520
Bases of 128985600
- Binary: 1111011000000101010000000002
- Hexadecimal: 0x7B02A00
- Base-36: 24SLXC
Squares and roots of 128985600
- 128985600 squared (1289856002) is 16637285007360000
- 128985600 cubed (1289856003) is 2145970189045334016000000
-
The
square root of 128985600 is 11357.1827492561 -
The
cube root of 128985600 is 505.2586330005
Scales and comparisons
How big is 128985600?- 128,985,600 seconds is equal to 4 years, 5 weeks, 1 day, 21 hours, 20 minutes.
-
To count from 1 to 128,985,600 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 128985600 cubic inches would be around 42.1 feet tall.
Recreational maths with 128985600
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