205128025 is an odd 9-digits composite number following 205128024
and preceding 205128026 . In scientific notation, it is written as 2.05128025 × 10^8.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 164102400 positive integers (up to 205128025) that are relatively prime to 205128025.
205128025 has 4 divisors, whose sum is 213333172
The reverse of 205128025 is 520821502
Previous prime number is 25
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 25
Digital Root 7
Name
two hundred five million one hundred twenty-eight thousand twenty-five
Scientific notation
2.05128025 × 10^8
Engineering notation
2.05128025 × 10^6
Prime Factorization
25 × 8205121
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
205128025
Product of the distinct prime numbers
The prime factorization of 205128025 is 25 × 8205121.
Since it has a total of 2 prime factors.
7 , 3 , 69 , 45 , 477 , 347 , 9771 , 9793 , 66243 , 13431 , 477415 , 134892 , 4769900 , 1259340 , 14751143 , 60227904 , 25365578 , 82659239 , 8327706919 , 3004294098
n×2
410256050
n×3
615384075
n×4
820512100
n×5
1025640125
n÷2
102564012.5
n÷3
68376008.333333
n÷3
51282006.25
n÷5
41025605
n2
42077506640400625
n3
8.6312758340698E+24
n4
1.770516565073E+33
n5
3.631825662232E+41
2 √n
14322.291192404
3 √n
589.75957358929
4 √n
119.67577529477
5 √n
45.96264359842
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
-205128024
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 205128025 can be divided by 4 positive divisors.
The sum of these divisors (counting 205128025) is 1, the average is 0.25.
Base
System
Value
2
Binary
1100001110100000000101011001
3
Ternary
112021222120202021
4
Quaternary
30032200011121
5
Quinary
410003044100
6
Senary
32204334441
8
Octal
1416400531
10
Decimal
205128025
12
Duodecimal
58844421
16
Hexadecimal
c3a0159
20
Vigesimal
3421015
36
Base36
3e4lsp
md5
38cc6b245e259c40a67e6f08490c03fd
sha1
15034489b220a11771fd46e8024c643482fe382e
sha256
a644c081c765b6b44db7e58e77fd4a8ba51d0f5621882f1d050ecf50125136be
sha512
e68fbf4c89ce4144ba482593769d1f71f49aeda230cf21fcdcc8dae4284b84ad6ced28f1c8a42496a3a7f103f05246d9fbecc356a8c2514f267fd1aff4e327ba
ripemd-160
f97ce7c4548ff2f0041d6a5e8aa4599a5b9099b5
Diameter
410256050
Circumference
1288857392.7708
Area
1.3219038574286E+17
Volume
3.6154603668561E+25
Surface area
5.2876154297143E+17
Circumference
1288857392.7708
Perimeter
820512100
Area
42077506640400625
Diagonal
290094834.97781
Surface area
252465039842403750
Volume
8.6312758340698E+24
Space diagonal
355292161.35626
Perimeter
615384075
Area
1.8220094839248E+16
Altitude
177646080.67813
Surface area
1.8220094839248E+16
Volume
1.0172056120937E+24
Height
96698278.325936