128888 is an even 6-digits composite number following 128887
and preceding 128889 . In scientific notation, it is written as 1.28888 × 10^5.
The sum of its digits is 35. It has a total of 4 prime factors and 8 positive divisors.
There are 64440 positive integers (up to 128888) that are relatively prime to 128888.
128888 has 8 divisors, whose sum is 241680
The reverse of 128888 is 888821
Previous prime number is 2
Is Prime? no
Number parity even
Number length 6
Sum of Digits 35
Digital Root 8
Name
one hundred twenty-eight thousand eight hundred eighty-eight
Scientific notation
1.28888 × 10^5
Engineering notation
1.28888 × 10^3
Prime Factorization
2 × 2 × 2 × 16111
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
32222
Product of the distinct prime numbers
The prime factorization of 128888 is 2 × 2 × 2 × 16111.
Since it has a total of 4 prime factors.
8 , 8 , 70 , 63 , 266 , 251 , 8346 , 5469 , 55858 , 15670 , 967143 , 270483 , 5129247 , 3668314 , 80867087 , 87174817 , 492265428 , 945317296 , 140334503 , 9971621444
n×2
257776
n×3
386664
n×4
515552
n×5
644440
n÷2
64444
n÷3
42962.666666667
n÷3
32222
n÷5
25777.6
n2
16612116544
n3
2141102477123072
n4
2.7596241607144E+20
n5
3.5568243882616E+25
2 √n
359.00974917124
3 √n
50.51311622186
4 √n
18.947552590539
5 √n
10.520648162685
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-128887
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128888 can be divided by 8 positive divisors.
The sum of these divisors (counting 128888) is 1, the average is 0.125.
Base
System
Value
2
Binary
11111011101111000
3
Ternary
20112210122
4
Quaternary
133131320
5
Quinary
13111023
6
Senary
2432412
8
Octal
373570
10
Decimal
128888
12
Duodecimal
62708
16
Hexadecimal
1f778
20
Vigesimal
g248
36
Base36
2rg8
md5
6b4ca8b104a6bf378ecfa48112acb69d
sha1
e499d3fa82a587d41f86ebe69796a5390b32cdc9
sha256
418569bd2f7306ffc8dbd57007a2822ee82c3020c96fbeeb05e6a00c8152cb13
sha512
452f4f3da001a3a72db2c9553604e8dc16ce42eece7f4e8c3d3fb8e875654d07a53ebfff411e614de22c3df0260367c8028082ee116ac08d2afe5b7f3606abb4
ripemd-160
11d2d1ccc861a6dfd5ca1bc27e486d2b3eef0f30
Diameter
257776
Circumference
809827.18787176
Area
52188503295.208
Volume
8.968629083617E+15
Surface area
208754013180.83
Circumference
809827.18787176
Perimeter
515552
Area
16612116544
Diagonal
182275.15762714
Surface area
99672699264
Volume
2141102477123072
Space diagonal
223240.56448594
Perimeter
386664
Area
7193257468.8659
Altitude
111620.28224297
Surface area
7193257468.8659
Volume
2.5233134679817E+14
Height
60758.385875714