128894 is an even 6-digits composite number following 128893
and preceding 128895 . In scientific notation, it is written as 1.28894 × 10^5.
The sum of its digits is 32. It has a total of 4 prime factors and 12 positive divisors.
There are 60384 positive integers (up to 128894) that are relatively prime to 128894.
128894 has 12 divisors, whose sum is 206304
The reverse of 128894 is 498821
Previous prime number is 17
Is Prime? no
Number parity even
Number length 6
Sum of Digits 32
Digital Root 5
Name
one hundred twenty-eight thousand eight hundred ninety-four
Scientific notation
1.28894 × 10^5
Engineering notation
1.28894 × 10^3
Prime Factorization
2 × 17 × 17 × 223
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
7582
Product of the distinct prime numbers
The prime factorization of 128894 is 2 × 17 × 17 × 223.
Since it has a total of 4 prime factors.
2 , 7 , 90 , 70 , 38 , 863 , 2570 , 7830 , 86601 , 12902 , 137961 , 568512 , 5282497 , 4316522 , 85358469 , 22648304 , 726880057 , 648631649 , 6516443312 , 4392939891
n×2
257788
n×3
386682
n×4
515576
n×5
644470
n÷2
64447
n÷3
42964.666666667
n÷3
32223.5
n÷5
25778.8
n2
16613663236
n3
2141401509140984
n4
2.7601380611922E+20
n5
3.557652352593E+25
2 √n
359.01810539303
3 √n
50.513900039321
4 √n
18.947773098521
5 √n
10.520746112399
1 , 2 , 17 , 34 , 223 , 289 , 446 , 578 , 3791 , 7582 , 64447 , 128894
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
-128893
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 128894 can be divided by 12 positive divisors.
The sum of these divisors (counting 128894) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
11111011101111110
3
Ternary
20112210212
4
Quaternary
133131332
5
Quinary
13111034
6
Senary
2432422
8
Octal
373576
10
Decimal
128894
12
Duodecimal
62712
16
Hexadecimal
1f77e
20
Vigesimal
g24e
36
Base36
2rge
md5
d3d5f8dd875e266b2f2c46c36a5d9ed5
sha1
2bf3c7216967478f3fc7f9fae3356f0b1525fa6a
sha256
abae242c52ecc21113e27aaa98990562dd885119a2a7231992840f42db995dcd
sha512
525fa33a34caae2275023effd76d0c58903399abfcf7351fdc6fea930dc3af46c698280b5833e01e44f00d4fdec2b804594e8601e437d79e49b777096c7a6209
ripemd-160
8dadd15633f08d0831e9ae7bd2e262488426d2d6
Diameter
257788
Circumference
809864.88698361
Area
52193362371.432
Volume
8.9698816660045E+15
Surface area
208773449485.73
Circumference
809864.88698361
Perimeter
515576
Area
16613663236
Diagonal
182283.64290852
Surface area
99681979416
Volume
2141401509140984
Space diagonal
223250.95679078
Perimeter
386682
Area
7193927206.1478
Altitude
111625.47839539
Surface area
7193927206.1478
Volume
2.5236658805945E+14
Height
60761.214302839