205712421 is an odd 9-digits composite number following 205712420
and preceding 205712422 . In scientific notation, it is written as 2.05712421 × 10^8.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 136822560 positive integers (up to 205712421) that are relatively prime to 205712421.
205712421 has 8 divisors, whose sum is 274921344
The reverse of 205712421 is 124217502
Previous prime number is 431
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 24
Digital Root 6
Name
two hundred five million seven hundred twelve thousand four hundred twenty-one
Scientific notation
2.05712421 × 10^8
Engineering notation
2.05712421 × 10^6
Prime Factorization
3 × 431 × 159097
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
205712421
Product of the distinct prime numbers
The prime factorization of 205712421 is 3 × 431 × 159097.
Since it has a total of 3 prime factors.
7 , 3 , 91 , 33 , 803 , 48 , 755 , 8103 , 85292 , 81458 , 792832 , 726526 , 8241660 , 6975199 , 61186321 , 88185390 , 671619784 , 243457198 , 5325034906 , 1068930819
n×2
411424842
n×3
617137263
n×4
822849684
n×5
1028562105
n÷2
102856210.5
n÷3
68570807
n÷3
51428105.25
n÷5
41142484.2
n2
42317600153681241
n3
8.7052559785237E+24
n4
1.7907792827668E+33
n5
3.6838554173461E+41
2 √n
14342.678306369
3 √n
590.31910440737
4 √n
119.76092144923
5 √n
45.988802703605
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-205712420
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 205712421 can be divided by 8 positive divisors.
The sum of these divisors (counting 205712421) is 1, the average is 0.125.
Base
System
Value
2
Binary
1100010000101110110000100101
3
Ternary
112100002021101120
4
Quaternary
30100232300211
5
Quinary
410130244141
6
Senary
32225044153
8
Octal
1420566045
10
Decimal
205712421
12
Duodecimal
58a86659
16
Hexadecimal
c42ec25
20
Vigesimal
345e111
36
Base36
3eh4px
md5
b6bac522b5d30c847cfe38e5303c8756
sha1
34b2f64abbc6d4fa1cf30601a30f36a84d605658
sha256
822c5cca2550fd1e6f527ae7d156a573805389207e14087e3f77ba082e5db5ff
sha512
13aff8e4ef0a06d6c2f346ec1d2587cf62d54b2c4705e192c114a68c4e81a29fe1d95e549ddbca20d4c1e45e195bad3c4e23bdd68be65b381f268a872ba03df5
ripemd-160
1cb826f14dadf276fd7737f78f2ef92ba2de71f9
Diameter
411424842
Circumference
1292529261.1315
Area
1.3294466176036E+17
Volume
3.6464490972998E+25
Surface area
5.3177864704142E+17
Circumference
1292529261.1315
Perimeter
822849684
Area
42317600153681241
Diagonal
290921295.7268
Surface area
253905600922087446
Volume
8.7052559785237E+24
Space diagonal
356304364.92
Perimeter
617137263
Area
1.832405838014E+16
Altitude
178152182.46
Surface area
1.832405838014E+16
Volume
1.0259242557298E+24
Height
96973765.242268