128521 is an odd 6-digits prime number following 128520
and preceding 128522 . In scientific notation, it is written as 1.28521 × 10^5.
The sum of its digits is 19. It has a total of 1 prime factors and 2 positive divisors.
There are 128520 positive integers (up to 128521) that are relatively prime to 128521.
128521 has 2 divisors, whose sum is 128522
The reverse of 128521 is 125821
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 6
Sum of Digits 19
Digital Root 1
Name
one hundred twenty-eight thousand five hundred twenty-one
Scientific notation
1.28521 × 10^5
Engineering notation
1.28521 × 10^3
Prime Factorization
128521
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
128521
Product of the distinct prime numbers
The prime factorization of 128521 is 128521.
Since it has a total of 1 prime factors.
2 , 7 , 34 , 45 , 163 , 100 , 9181 , 6559 , 74411 , 56062 , 959364 , 655412 , 2603826 , 3542658 , 83958460 , 63248739 , 513901723 , 910968631 , 2838698891 , 1992838594
n×2
257042
n×3
385563
n×4
514084
n×5
642605
n÷2
64260.5
n÷3
42840.333333333
n÷3
32130.25
n÷5
25704.2
n2
16517647441
n3
2122864566764761
n4
2.7283267698517E+20
n5
3.5064728478812E+25
2 √n
358.49825662059
3 √n
50.465126398451
4 √n
18.934050190611
5 √n
10.514649957936
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
128522
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
64261
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
358.4996513248
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999844384619
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128521 can be divided by 2 positive divisors.
The sum of these divisors (counting 128521) is 128522, the average is 64261.
Base
System
Value
2
Binary
11111011000001001
3
Ternary
20112022001
4
Quaternary
133120021
5
Quinary
13103041
6
Senary
2431001
8
Octal
373011
10
Decimal
128521
12
Duodecimal
62461
16
Hexadecimal
1f609
20
Vigesimal
g161
36
Base36
2r61
md5
d4e19685cbacd81c275120352a2c8555
sha1
212f338636054352d8a5dc700b8fc5ba43ddff60
sha256
66c1ca21a01e6b052b9072faa954c3660fe3dea1a338dc770a7d808164d6e242
sha512
a9508d68b9791cb0303fc4e0042e05be52d182ec2d3f14baaa3930ce89443c41998ebb458bec6e4632d25e259f18f238930565aa8a9965b7ba0835d949b43007
ripemd-160
c7a9bf7ea8dd4e1827ffa8930f33820eac893ce8
Diameter
257042
Circumference
807521.25886403
Area
51891719855.232
Volume
8.8922343033523E+15
Surface area
207566879420.93
Circumference
807521.25886403
Perimeter
514084
Area
16517647441
Diagonal
181756.14124975
Surface area
99105884646
Volume
2122864566764761
Space diagonal
222604.90183956
Perimeter
385563
Area
7152351147.3305
Altitude
111302.45091978
Surface area
7152351147.3305
Volume
2.5018198845E+14
Height
60585.380416584