388638628 (number)
388638628 is an even 9-digits composite number following 388638627 and preceding 388638629. In scientific notation, it is written as 3.88638628 × 10^8. The sum of its digits is 52. It has a total of 6 prime factors and 48 positive divisors. There are 159304320 positive integers (up to 388638628) that are relatively prime to 388638628.
Interesting facts
- 388638628 has 48 divisors, whose sum is 811641600
- The reverse of 388638628 is 826836883
- Previous prime number is 109
Basic properties
- Is Prime? no
- Number parity even
- Number length 9
- Sum of Digits 52
- Digital Root 7
Name
Name | three hundred eighty-eight million six hundred thirty-eight thousand six hundred twenty-eight |
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Notation
Scientific notation | 3.88638628 × 10^8 |
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Engineering notation | 3.88638628 × 10^6 |
Prime Factorization of 388638628
Prime Factorization 2 × 2 × 7 × 29 × 109 × 4391
Composite numberω | Distinct Factors | 5 | Total number of distinct prime factors |
---|---|---|---|
Ω | Total Factors | 6 | Total number of prime factors |
rad | Radical | 194319314 | Product of the distinct prime numbers |
The prime factorization of 388638628 is 2 × 2 × 7 × 29 × 109 × 4391. Since it has a total of 6 prime factors.
Most popular turbo-numbers
Basic calculations (n = 388638628)
Multiplication
n×yn×2 | 777277256 |
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n×3 | 1165915884 |
n×4 | 1554554512 |
n×5 | 1943193140 |
Division
n÷yn÷2 | 194319314 |
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n÷3 | 129546209.33333 |
n÷3 | 97159657 |
n÷5 | 77727725.6 |
Exponentiation
nyn2 | 151039983173722384 |
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n3 | 5.8699971833779E+25 |
n4 | 2.2813076517118E+34 |
n5 | 8.8660427580719E+42 |
Nth Root
y√n2√n | 19713.919650846 |
---|---|
3√n | 729.76324842741 |
4√n | 140.406266423 |
5√n | 52.228697198561 |
Divisors of 388638628
48 divisors
τ | Total Divisors | 48 | Total number of the positive divisors of n |
---|---|---|---|
σ | Sum of Divisors | 1 | Sum of all the positive divisors of n |
s | Aliquot Sum | -388638627 | Sum of the proper positive divisors of n |
A | Arithmetic Mean | 0.020833333333333 | 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 | 48 | Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors |
The number 388638628 can be divided by 48 positive divisors. The sum of these divisors (counting 388638628) is 1, the average is 0.020833333333333.
Base conversion 388638628
Base | System | Value |
---|---|---|
2 | Binary | 10111001010100010011110100100 |
3 | Ternary | 1000002021212222021 |
4 | Quaternary | 113022202132210 |
5 | Quinary | 1243442414003 |
6 | Senary | 102321512524 |
8 | Octal | 2712423644 |
10 | Decimal | 388638628 |
12 | Duodecimal | aa1a2744 |
16 | Hexadecimal | 172a27a4 |
20 | Vigesimal | 618jgb8 |
36 | Base36 | 6fdvhg |
Cryptographic Hash Functions
md5 | 5acb70312445c0e831e18233be5afeaa |
---|---|
sha1 | 7a686ae4df0cf61977289b95157e703aec31fedb |
sha256 | 6a64d4526bf0805a78eda9be46211695b3d5c2089a9edbd665103b4197d6009d |
sha512 | a7cbfff8cf1db7997f0bc94bf4040773f3e044f3751c01c768b802af6d9707ca01b1e2cf60e152b704ce73bd2dae5ffcdffc81543d91316f0231acc733cc0049 |
ripemd-160 | ff089a8f042ead78dbeba8e28e71966b16694802 |
388638628 as geometric shapes
Circle
Radius = nDiameter | 777277256 |
---|---|
Circumference | 2441888517.252 |
Area | 4.7450610153689E+17 |
Sphere
Radius = nVolume | 2.4588186703857E+26 |
---|---|
Surface area | 1.8980244061476E+18 |
Circumference | 2441888517.252 |
Square
Length = nPerimeter | 1554554512 |
---|---|
Area | 151039983173722384 |
Diagonal | 549618018.57967 |
Cube
Length = nSurface area | 906239899042334304 |
---|---|
Volume | 5.8699971833779E+25 |
Space diagonal | 673141849.47986 |
Equilateral Triangle
Length = nPerimeter | 1165915884 |
---|---|
Area | 6.5402231207809E+16 |
Altitude | 336570924.73993 |
Triangular Pyramid
Length = nSurface area | 6.5402231207809E+16 |
---|---|
Volume | 6.9178580231874E+24 |
Height | 183206006.19322 |