128389908 is an even 9-digits composite number following 128389907
and preceding 128389909 . In scientific notation, it is written as 1.28389908 × 10^8.
The sum of its digits is 48. It has a total of 4 prime factors and 12 positive divisors.
There are 42796632 positive integers (up to 128389908) that are relatively prime to 128389908.
128389908 has 12 divisors, whose sum is 299576480
The reverse of 128389908 is 809983821
Previous prime number is 3
Is Prime? no Number parity even Number length 9 Sum of Digits 48 Digital Root 3
Name
one hundred twenty-eight million three hundred eighty-nine thousand nine hundred eight
Scientific notation
1.28389908 × 10^8
Engineering notation
1.28389908 × 10^6
Prime Factorization
2 × 2 × 3 × 10699159
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
64194954 Product of the distinct prime numbers
The prime factorization of 128389908 is 2 × 2 × 3 × 10699159.
Since it has a total of 4 prime factors.
4 , 7 , 75 , 71 , 770 , 413 , 2271 , 1233 , 52241 , 91172 , 617618 , 342834 , 6658479 , 762813 , 77585484 , 80909413 , 699110447 , 158208869 , 8592789041 , 3621105057
n×2
256779816
n×3
385169724
n×4
513559632
n×5
641949540
n÷2
64194954
n÷3
42796636
n÷3
32097477
n÷5
25677981.6
n2
16483968476248464
n3
2.1163751961404E+24
n4
2.7172121672595E+32
n5
3.4886262017093E+40
2 √n11330.927058277
3 √n504.47962342433
4 √n106.44682737535
5 √n41.85103256375
1 , 2 , 3 , 4 , 6 , 12 , 10699159 , 21398318 , 32097477 , 42796636 , 64194954 , 128389908
12 divisors
τ Total Divisors
12 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-128389907 Sum of the proper positive divisors of n
A Arithmetic Mean
0.083333333333333 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
12 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128389908 can be divided by 12 positive divisors.
The sum of these divisors (counting 128389908) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
111101001110001001100010100
3
Ternary
22221120212211210
4
Quaternary
13221301030110
5
Quinary
230331434113
6
Senary
20423501420
8
Octal
751611424
10
Decimal
128389908
12
Duodecimal
36bb7870
16
Hexadecimal
7a71314
20
Vigesimal
2028ef8
36
Base36
24fuac
md5
03aa31e25b573353be9c4df981182a3f
sha1
91cb62418132cbd8e8e42a2bca86c52d1bfa1038
sha256
40894e5e2f3567028cf522387ea70764aa39a795ac79c1ab632a7e441d741fb3
sha512
769f829684e383c43c5462ad5ca66196982bb1670c788823c6544add28c4f027e818ebc75df8fa594066121429d3bad290198039a4d45dafce8d202c4493d720
ripemd-160
1a0edce772049cdec81451b50b4da1849db5723f
Diameter
256779816
Circumference
806697583.53574
Area
5.1785914266988E+16
Volume
8.865051691246E+24
Surface area
2.0714365706795E+17
Circumference
806697583.53574
Perimeter
513559632
Area
16483968476248464
Diagonal
181570749.16543
Surface area
98903810857490784
Volume
2.1163751961404E+24
Space diagonal
222377843.83509
Perimeter
385169724
Area
7.1377677278065E+15
Altitude
111188921.91755
Surface area
7.1377677278065E+15
Volume
2.4941720878765E+23
Height
60523583.055145