128904 is an even 6-digits composite number following 128903
and preceding 128905 . In scientific notation, it is written as 1.28904 × 10^5.
The sum of its digits is 24. It has a total of 6 prime factors and 32 positive divisors.
There are 41600 positive integers (up to 128904) that are relatively prime to 128904.
128904 has 32 divisors, whose sum is 332640
The reverse of 128904 is 409821
Previous prime number is 131
Is Prime? no
Number parity even
Number length 6
Sum of Digits 24
Digital Root 6
Name
one hundred twenty-eight thousand nine hundred four
Scientific notation
1.28904 × 10^5
Engineering notation
1.28904 × 10^3
Prime Factorization
2 × 2 × 2 × 3 × 131 × 41
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
32226
Product of the distinct prime numbers
The prime factorization of 128904 is 2 × 2 × 2 × 3 × 131 × 41.
Since it has a total of 6 prime factors.
3 , 8 , 25 , 59 , 560 , 668 , 9823 , 6671 , 6700 , 81594 , 55325 , 880498 , 5594675 , 4564252 , 27750029 , 83216494 , 724539382 , 356352885 , 6093596461 , 4853913106
n×2
257808
n×3
386712
n×4
515616
n×5
644520
n÷2
64452
n÷3
42968
n÷3
32226
n÷5
25780.8
n2
16616241216
n3
2141899957707264
n4
2.760994721483E+20
n5
3.5590326357804E+25
2 √n
359.03203199715
3 √n
50.515206347702
4 √n
18.948140594717
5 √n
10.520909353817
1 , 2 , 3 , 4 , 6 , 8 , 12 , 24 , 41 , 82 , 123 , 131 , 164 , 246 , 262 , 328 , 393 , 492 , 524 , 786 , 984 , 1048 , 1572 , 3144 , 5371 , 10742 , 16113 , 21484 , 32226 , 42968 , 64452 , 128904
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-128903
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128904 can be divided by 32 positive divisors.
The sum of these divisors (counting 128904) is 1, the average is 0.03125.
Base
System
Value
2
Binary
11111011110001000
3
Ternary
20112211020
4
Quaternary
133132020
5
Quinary
13111104
6
Senary
2432440
8
Octal
373610
10
Decimal
128904
12
Duodecimal
62720
16
Hexadecimal
1f788
20
Vigesimal
g254
36
Base36
2rgo
md5
4c7ae79c18cb3c2f3e1fa98185b2d78d
sha1
3f664ea2a9bb064ba1ab8e3649c76dc2038a9c67
sha256
e90837a0e9b37dfcf040610f7967b4db34b647e9d5bb2f83107f3e53bc6fb8ca
sha512
46ae84a32195c4e97e723552ea91e99d202e7e0cfbe66d14f2e0fd2646223c0c3809f1a7d6dccec6e836f8da00b54ea1e40196c1bcf2e64834e6610d7a825423
ripemd-160
07da6675838a5970d808a9deb0cedf5ddcd48ba3
Diameter
257808
Circumference
809927.71883668
Area
52201461334.462
Volume
8.9719695624766E+15
Surface area
208805845337.85
Circumference
809927.71883668
Perimeter
515616
Area
16616241216
Diagonal
182297.78504414
Surface area
99697447296
Volume
2141899957707264
Space diagonal
223268.27729886
Perimeter
386712
Area
7195043504.233
Altitude
111634.13864943
Surface area
7195043504.233
Volume
2.5242533078633E+14
Height
60765.928348047