128215120
128,215,120 is an even composite number composed of five prime numbers multiplied together.
128215120 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 128215120:
24 × 5 × 11 × 367 × 397
(2 × 2 × 2 × 2 × 5 × 11 × 367 × 397)See below for interesting mathematical facts about the number 128215120 from the Numbermatics database.
Names of 128215120
- Cardinal: 128215120 can be written as One hundred twenty-eight million, two hundred fifteen thousand, one hundred twenty.
Scientific notation
- Scientific notation: 1.2821512 × 108
Factors of 128215120
Divisors of 128215120
- Number of divisors d(n): 80
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Complete list of divisors:
1 2 4 5 8 10 11 16 20 22 40 44 55 80 88 110 176 220 367 397 440 734 794 880 1468 1588 1835 1985 2936 3176 3670 3970 4037 4367 5872 6352 7340 7940 8074 8734 14680 15880 16148 17468 20185 21835 29360 31760 32296 34936 40370 43670 64592 69872 80740 87340 145699 161480 174680 291398 322960 349360 582796 728495 1165592 1456990 1602689 2331184 2913980 3205378 5827960 6410756 8013445 11655920 12821512 16026890 25643024 32053780 64107560 128215120
- Sum of all divisors σ(n): 326907648
- Sum of proper divisors (its aliquot sum) s(n): 198692528
- 128215120 is an abundant number, because the sum of its proper divisors (198692528) is greater than itself. Its abundance is 70477408
Bases of 128215120
- Binary: 1111010010001101000010100002
- Hexadecimal: 0x7A46850
- Base-36: 24C3F4
Squares and roots of 128215120
- 128215120 squared (1282151202) is 16439116996614400
- 128215120 cubed (1282151203) is 2107743358414954889728000
-
The
square root of 128215120 is 11323.2115585641 -
The
cube root of 128215120 is 504.2505892519
Scales and comparisons
How big is 128215120?- 128,215,120 seconds is equal to 4 years, 3 weeks, 6 days, 23 hours, 18 minutes, 40 seconds.
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To count from 1 to 128,215,120 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 128215120 cubic inches would be around 42 feet tall.
Recreational maths with 128215120
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