205129431 is an odd 9-digits composite number following 205129430
and preceding 205129432 . In scientific notation, it is written as 2.05129431 × 10^8.
The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors.
There are 126233424 positive integers (up to 205129431) that are relatively prime to 205129431.
205129431 has 12 divisors, whose sum is 319090408
The reverse of 205129431 is 134921502
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 27
Digital Root 9
Name
two hundred five million one hundred twenty-nine thousand four hundred thirty-one
Scientific notation
2.05129431 × 10^8
Engineering notation
2.05129431 × 10^6
Prime Factorization
3 × 3 × 13 × 1753243
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
68376477
Product of the distinct prime numbers
The prime factorization of 205129431 is 3 × 3 × 13 × 1753243.
Since it has a total of 4 prime factors.
3 , 5 , 84 , 31 , 675 , 493 , 3668 , 4800 , 2918 , 51655 , 502419 , 498288 , 2835793 , 8716702 , 59150654 , 52246060 , 268419770 , 568288656 , 4834458307 , 5354032857
n×2
410258862
n×3
615388293
n×4
820517724
n×5
1025647155
n÷2
102564715.5
n÷3
68376477
n÷3
51282357.75
n÷5
41025886.2
n2
42078083462383761
n3
8.6314533182093E+24
n4
1.7705651078673E+33
n5
3.6319501312528E+41
2 √n
14322.340276645
3 √n
589.76092104058
4 √n
119.67598036634
5 √n
45.962706606193
1 , 3 , 9 , 13 , 39 , 117 , 1753243 , 5259729 , 15779187 , 22792159 , 68376477 , 205129431
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
-205129430
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 205129431 can be divided by 12 positive divisors.
The sum of these divisors (counting 205129431) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1100001110100000011011010111
3
Ternary
112021222122200100
4
Quaternary
30032200123113
5
Quinary
410003120211
6
Senary
32204345143
8
Octal
1416403327
10
Decimal
205129431
12
Duodecimal
588451b3
16
Hexadecimal
c3a06d7
20
Vigesimal
34213bb
36
Base36
3e4mvr
md5
b5930d0cae313a7c5a52dbbbb711a03f
sha1
9c0209fc80de21ff2c598247d9a4418b9641dcb2
sha256
035a2a3538debbbf3b4a82afeeb7ac9ac6f31695f19d4a87d2fb6ac2feba0c37
sha512
3773f829884189ebf3619e8b61f82787138b6aa84723f82dd3474fb244a2e4932060f3f1111f8ba2772c19578fb88f544fa031ee7d7ede34ea39235e4e167c2e
ripemd-160
387a46a9a706a8426ab05169c95b7627c71f62dc
Diameter
410258862
Circumference
1288866226.9293
Area
1.3219219788256E+17
Volume
3.6155347112386E+25
Surface area
5.2876879153025E+17
Circumference
1288866226.9293
Perimeter
820517724
Area
42078083462383761
Diagonal
290096823.36208
Surface area
252468500774302566
Volume
8.6314533182093E+24
Space diagonal
355294596.61969
Perimeter
615388293
Area
1.8220344610493E+16
Altitude
177647298.30985
Surface area
1.8220344610493E+16
Volume
1.0172265288002E+24
Height
96698941.120692