128889 is an odd 6-digits composite number following 128888
and preceding 128890 . In scientific notation, it is written as 1.28889 × 10^5.
The sum of its digits is 36. It has a total of 2 prime factors and 4 positive divisors.
There are 85920 positive integers (up to 128889) that are relatively prime to 128889.
128889 has 4 divisors, whose sum is 143220
The reverse of 128889 is 988821
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 36
Digital Root 9
Name
one hundred twenty-eight thousand eight hundred eighty-nine
Scientific notation
1.28889 × 10^5
Engineering notation
1.28889 × 10^3
Prime Factorization
9 × 14321
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
128889
Product of the distinct prime numbers
The prime factorization of 128889 is 9 × 14321.
Since it has a total of 2 prime factors.
10 , 6 , 67 , 49 , 197 , 626 , 8675 , 7599 , 31039 , 49492 , 66356 , 948089 , 6807785 , 6504820 , 50749510 , 50260287 , 690532280 , 198633721 , 1931243169 , 9148439449
n×2
257778
n×3
386667
n×4
515556
n×5
644445
n÷2
64444.5
n÷3
42963
n÷3
32222.25
n÷5
25777.8
n2
16612374321
n3
2141152313859369
n4
2.7597098058102E+20
n5
3.5569623716107E+25
2 √n
359.01114188838
3 √n
50.513246859793
4 √n
18.947589342404
5 √n
10.520664487891
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-128888
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128889 can be divided by 4 positive divisors.
The sum of these divisors (counting 128889) is 1, the average is 0.25.
Base
System
Value
2
Binary
11111011101111001
3
Ternary
20112210200
4
Quaternary
133131321
5
Quinary
13111024
6
Senary
2432413
8
Octal
373571
10
Decimal
128889
12
Duodecimal
62709
16
Hexadecimal
1f779
20
Vigesimal
g249
36
Base36
2rg9
md5
12abfd2beaed4e9530bb726cc44deab5
sha1
6f3d23c1e82fd73820d37d1ee049b057a9a8e707
sha256
b4ae20fc0af6cf0ae3ece8d3653c00168e3cc5c01aebd3a159f6d593d106a8f6
sha512
7cab73e96d605f7f4b7a68ce3f1f9ef15ebfc696966aee91c35edc46389f75c5afe57538c538104bfc701384814b6b71af82a8b1e54b1986111d38e4a4e7335d
ripemd-160
497da870146d92f4ba04df21837b04f894847e17
Diameter
257778
Circumference
809833.47105707
Area
52189313125.537
Volume
8.9688378392498E+15
Surface area
208757252502.15
Circumference
809833.47105707
Perimeter
515556
Area
16612374321
Diagonal
182276.57184071
Surface area
99674245926
Volume
2141152313859369
Space diagonal
223242.29653675
Perimeter
386667
Area
7193369089.5811
Altitude
111621.14826837
Surface area
7193369089.5811
Volume
2.5233722011387E+14
Height
60758.857280235