128429388 (number)
128429388 is an even 9-digits composite number following 128429387 and preceding 128429389. In scientific notation, it is written as 1.28429388 × 10^8. The sum of its digits is 45. It has a total of 7 prime factors and 72 positive divisors. There are 41850432 positive integers (up to 128429388) that are relatively prime to 128429388.
Interesting facts
- 128429388 has 72 divisors, whose sum is 318194352
- The reverse of 128429388 is 883924821
- Previous prime number is 3
Basic properties
- Is Prime? no
- Number parity even
- Number length 9
- Sum of Digits 45
- Digital Root 9
Name
Name | one hundred twenty-eight million four hundred twenty-nine thousand three hundred eighty-eight |
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Notation
Scientific notation | 1.28429388 × 10^8 |
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Engineering notation | 1.28429388 × 10^6 |
Prime Factorization of 128429388
Prime Factorization 2 × 2 × 53 × 27 × 27 × 3 × 277
Composite numberω | Distinct Factors | 5 | Total number of distinct prime factors |
---|---|---|---|
Ω | Total Factors | 7 | Total number of prime factors |
rad | Radical | 2378322 | Product of the distinct prime numbers |
The prime factorization of 128429388 is 2 × 2 × 53 × 27 × 27 × 3 × 277. Since it has a total of 7 prime factors.
Most popular turbo-numbers
Basic calculations (n = 128429388)
Multiplication
n×yn×2 | 256858776 |
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n×3 | 385288164 |
n×4 | 513717552 |
n×5 | 642146940 |
Division
n÷yn÷2 | 64214694 |
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n÷3 | 42809796 |
n÷3 | 32107347 |
n÷5 | 25685877.6 |
Exponentiation
nyn2 | 16494107702054544 |
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n3 | 2.118328157781E+24 |
n4 | 2.7205558888698E+32 |
n5 | 3.4939932782734E+40 |
Nth Root
y√n2√n | 11332.669058964 |
---|---|
3√n | 504.5313274217 |
4√n | 106.45500955316 |
5√n | 41.853606092462 |
Divisors of 128429388
72 divisors
τ | Total Divisors | 72 | Total number of the positive divisors of n |
---|---|---|---|
σ | Sum of Divisors | 1 | Sum of all the positive divisors of n |
s | Aliquot Sum | -128429387 | Sum of the proper positive divisors of n |
A | Arithmetic Mean | 0.013888888888889 | Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) |
G | Geometric Mean | 1 | Returns the nth root of the product of n divisors |
H | Harmonic Mean | 72 | Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors |
The number 128429388 can be divided by 72 positive divisors. The sum of these divisors (counting 128429388) is 1, the average is 0.013888888888889.
Base conversion 128429388
Base | System | Value |
---|---|---|
2 | Binary | 111101001111010110101001100 |
3 | Ternary | 22221122220000000 |
4 | Quaternary | 13221322311030 |
5 | Quinary | 230334220023 |
6 | Senary | 20424404300 |
8 | Octal | 751726514 |
10 | Decimal | 128429388 |
12 | Duodecimal | 37016690 |
16 | Hexadecimal | 7a7ad4c |
20 | Vigesimal | 202dd98 |
36 | Base36 | 24gor0 |
Cryptographic Hash Functions
md5 | 81a70cc304bf5758f7627fa6bc983963 |
---|---|
sha1 | 472eb5d8a18e1bf1c83bbba71b25253e0fc126a1 |
sha256 | fb55d6a05ce73ee86a54236e92415481e515298c8706612d5fbeab0c1226502c |
sha512 | ed2cf7cb8c6f78a67dc5c582c2b9ea64ea4e6b21158a8baa941080a4fecb7f5af4504c9e509cbe7f2530afc9e9557a706680e695d85442f062b4580b542429c2 |
ripemd-160 | fa8f2e7f19e4d6bd212eeaa57c33390b1a0b5413 |
128429388 as geometric shapes
Circle
Radius = nDiameter | 256858776 |
---|---|
Circumference | 806945643.69167 |
Area | 5.1817767584293E+16 |
Sphere
Radius = nVolume | 8.873232237836E+24 |
---|---|
Surface area | 2.0727107033717E+17 |
Circumference | 806945643.69167 |
Square
Length = nPerimeter | 513717552 |
---|---|
Area | 16494107702054544 |
Diagonal | 181626582.31688 |
Cube
Length = nSurface area | 98964646212327264 |
---|---|
Volume | 2.118328157781E+24 |
Space diagonal | 222446225.20098 |
Equilateral Triangle
Length = nPerimeter | 385288164 |
---|---|
Area | 7.1421581413679E+15 |
Altitude | 111223112.60049 |
Triangular Pyramid
Length = nSurface area | 7.1421581413679E+15 |
---|---|
Volume | 2.4964736752422E+23 |
Height | 60542194.105625 |