128609908 is an even 9-digits composite number following 128609907
and preceding 128609909 . In scientific notation, it is written as 1.28609908 × 10^8.
The sum of its digits is 43. It has a total of 5 prime factors and 24 positive divisors.
There are 55117944 positive integers (up to 128609908) that are relatively prime to 128609908.
128609908 has 24 divisors, whose sum is 262472000
The reverse of 128609908 is 809906821
Previous prime number is 7
Is Prime? no
Number parity even
Number length 9
Sum of Digits 43
Digital Root 7
Name
one hundred twenty-eight million six hundred nine thousand nine hundred eight
Scientific notation
1.28609908 × 10^8
Engineering notation
1.28609908 × 10^6
Prime Factorization
2 × 2 × 49 × 7 × 93739
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
64304954
Product of the distinct prime numbers
The prime factorization of 128609908 is 2 × 2 × 49 × 7 × 93739.
Since it has a total of 5 prime factors.
3 , 7 , 34 , 73 , 471 , 792 , 1610 , 4737 , 46592 , 40145 , 911955 , 358978 , 4451549 , 624788 , 20224248 , 25730693 , 130689274 , 450197363 , 4851956890 , 2293457890
n×2
257219816
n×3
385829724
n×4
514439632
n×5
643049540
n÷2
64304954
n÷3
42869969.333333
n÷3
32152477
n÷5
25721981.6
n2
16540508435768464
n3
2.1272732681974E+24
n4
2.7358841931373E+32
n5
3.5186181437804E+40
2 √n
11340.63084665
3 √n
504.76760604126
4 √n
106.49239806977
5 √n
41.865365345887
1 , 2 , 4 , 7 , 14 , 28 , 49 , 98 , 196 , 343 , 686 , 1372 , 93739 , 187478 , 374956 , 656173 , 1312346 , 2624692 , 4593211 , 9186422 , 18372844 , 32152477 , 64304954 , 128609908
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-128609907
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128609908 can be divided by 24 positive divisors.
The sum of these divisors (counting 128609908) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
111101010100110111001110100
3
Ternary
22222000001121221
4
Quaternary
13222212321310
5
Quinary
230411004113
6
Senary
20432320124
8
Octal
752467164
10
Decimal
128609908
12
Duodecimal
370a3044
16
Hexadecimal
7aa6e74
20
Vigesimal
203g4f8
36
Base36
24kk1g
md5
7d011fc122c7d0cd24240b511487c5de
sha1
909913b3ceff473023a48c98883db958340358e9
sha256
da44aa0abaf01c00de6f589d1c9b46ba34fe7adbd4cc9443577c7c5a1cfa023f
sha512
d9fb6a920385512410ecda4bd510219dd6808ba4ace5ed14a66fcaf5cd71d7d103568485a0957c47f4de940f5ac72b02e4867d141ce0bff4c4ab2f0d2932ab24
ripemd-160
e328fb0614cf10fba51ce01a0057a6ed462bac69
Diameter
257219816
Circumference
808079884.30332
Area
5.196353978845E+16
Volume
8.9107014287292E+24
Surface area
2.078541591538E+17
Circumference
808079884.30332
Perimeter
514439632
Area
16540508435768464
Diagonal
181881876.14916
Surface area
99243050614610784
Volume
2.1272732681974E+24
Space diagonal
222758895.01276
Perimeter
385829724
Area
7.1622502484431E+15
Altitude
111379447.50638
Surface area
7.1622502484431E+15
Volume
2.5070155889654E+23
Height
60627292.049719