205742390 is an even 9-digits composite number following 205742389
and preceding 205742391 . In scientific notation, it is written as 2.05742390 × 10^8.
The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors.
There are 70540224 positive integers (up to 205742390) that are relatively prime to 205742390.
205742390 has 16 divisors, whose sum is 423241632
The reverse of 205742390 is 093247502
Previous prime number is 7
Is Prime? no
Number parity even
Number length 9
Sum of Digits 32
Digital Root 5
Name
two hundred five million seven hundred forty-two thousand three hundred ninety
Scientific notation
2.05742390 × 10^8
Engineering notation
2.05742390 × 10^6
Prime Factorization
2 × 5 × 7 × 2939177
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
205742390
Product of the distinct prime numbers
The prime factorization of 205742390 is 2 × 5 × 7 × 2939177.
Since it has a total of 4 prime factors.
10 , 1 , 49 , 15 , 318 , 277 , 3648 , 9771 , 6212 , 36665 , 514957 , 245341 , 6500402 , 8744528 , 43760459 , 567352 , 321342079 , 323819128 , 1021690995 , 4019040326
n×2
411484780
n×3
617227170
n×4
822969560
n×5
1028711950
n÷2
102871195
n÷3
68580796.666667
n÷3
51435597.5
n÷5
41148478
n2
42329931042912100
n3
8.7090611813039E+24
n4
1.7918230620977E+33
n5
3.686539592531E+41
2 √n
14343.723017404
3 √n
590.34776969021
4 √n
119.76528302227
5 √n
45.990142591701
1 , 2 , 5 , 7 , 10 , 14 , 35 , 70 , 2939177 , 5878354 , 14695885 , 20574239 , 29391770 , 41148478 , 102871195 , 205742390
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
-205742389
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 205742390 can be divided by 16 positive divisors.
The sum of these divisors (counting 205742390) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1100010000110110000100110110
3
Ternary
112100010210111112
4
Quaternary
30100312010312
5
Quinary
410132224030
6
Senary
32225435022
8
Octal
1420660466
10
Decimal
205742390
12
Duodecimal
58a9ba72
16
Hexadecimal
c436136
20
Vigesimal
345hfja
36
Base36
3ehrue
md5
e116ff31e96411bb7947a4cddfa08a97
sha1
3101290710cc47e48e40bf26d4c7afac64e1c34b
sha256
4ab5fcebec3ec1add844893c4e7b89b1bf242a95175446f6fa59afa5269e4232
sha512
2a3a4b9c21604fc124f778cdfeafa4af11c684a3b1534de9af3c778b939cbc8db86d300b94ccb9560c458eff25f51b5170907819c069db0105824fe0ae3e29e0
ripemd-160
6a4f038445df333c6c67a486aa1863f675f66fcf
Diameter
411484780
Circumference
1292717561.912
Area
1.3298340039138E+17
Volume
3.6480430169131E+25
Surface area
5.319336015655E+17
Circumference
1292717561.912
Perimeter
822969560
Area
42329931042912100
Diagonal
290963678.29305
Surface area
253979586257472600
Volume
8.7090611813039E+24
Space diagonal
356356272.75065
Perimeter
617227170
Area
1.8329397811803E+16
Altitude
178178136.37533
Surface area
1.8329397811803E+16
Volume
1.0263727031781E+24
Height
96987892.764352