205129813 is an odd 9-digits composite number following 205129812
and preceding 205129814 . In scientific notation, it is written as 2.05129813 × 10^8.
The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors.
There are 168505920 positive integers (up to 205129813) that are relatively prime to 205129813.
205129813 has 16 divisors, whose sum is 244384384
The reverse of 205129813 is 318921502
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 31
Digital Root 4
Name
two hundred five million one hundred twenty-nine thousand eight hundred thirteen
Scientific notation
2.05129813 × 10^8
Engineering notation
2.05129813 × 10^6
Prime Factorization
67 × 7 × 37 × 11821
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
205129813
Product of the distinct prime numbers
The prime factorization of 205129813 is 67 × 7 × 37 × 11821.
Since it has a total of 4 prime factors.
5 , 6 , 88 , 49 , 937 , 499 , 7487 , 356 , 5123 , 25557 , 812307 , 687981 , 6913707 , 2797380 , 91885816 , 75177200 , 397622385 , 423245046 , 6460366389 , 3951807374
n×2
410259626
n×3
615389439
n×4
820519252
n×5
1025649065
n÷2
102564906.5
n÷3
68376604.333333
n÷3
51282453.25
n÷5
41025962.6
n2
42078240181414969
n3
8.6315015397827E+24
n4
1.7705782967648E+33
n5
3.6319839491723E+41
2 √n
14322.353612448
3 √n
589.76128713226
4 √n
119.67603608262
5 √n
45.962723724888
1 , 7 , 37 , 67 , 259 , 469 , 2479 , 11821 , 17353 , 82747 , 437377 , 792007 , 3061639 , 5544049 , 29304259 , 205129813
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-205129812
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 205129813 can be divided by 16 positive divisors.
The sum of these divisors (counting 205129813) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1100001110100000100001010101
3
Ternary
112021222200012111
4
Quaternary
30032200201111
5
Quinary
410003123223
6
Senary
32204351021
8
Octal
1416404125
10
Decimal
205129813
12
Duodecimal
58845471
16
Hexadecimal
c3a0855
20
Vigesimal
34214ad
36
Base36
3e4n6d
md5
8e2691159d4b8afd25bb0f5d37582634
sha1
660aa631a6b482de2a78b90398e79bb01d8013b2
sha256
3be8e8bd5676cc4fff619463f37a1df54f0a1241937e7d0e2574a754a0fa1cd0
sha512
d6727399eb61d083ad9d192fe97f8bb4b3feb6e456fc5f7fbdeb13a80512816054a62cb302762b2b0d327f20e97f2d87d5a2b53b26ca298f8b2e60bd9d48d464
ripemd-160
4a7e97cc23fb1c32b6efb013a4049e1cf26b1114
Diameter
410259626
Circumference
1288868627.1061
Area
1.3219269022992E+17
Volume
3.6155549102441E+25
Surface area
5.2877076091968E+17
Circumference
1288868627.1061
Perimeter
820519252
Area
42078240181414969
Diagonal
290097363.59166
Surface area
252469441088489814
Volume
8.6315015397827E+24
Space diagonal
355295258.2631
Perimeter
615389439
Area
1.8220412471824E+16
Altitude
177647629.13155
Surface area
1.8220412471824E+16
Volume
1.0172322117671E+24
Height
96699121.197219