205742389 is an odd 9-digits prime number following 205742388
and preceding 205742390 . In scientific notation, it is written as 2.05742389 × 10^8.
The sum of its digits is 40. It has a total of 1 prime factors and 2 positive divisors.
There are 205742388 positive integers (up to 205742389) that are relatively prime to 205742389.
205742389 has 2 divisors, whose sum is 205742390
The reverse of 205742389 is 983247502
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 9
Sum of Digits 40
Digital Root 4
Name
two hundred five million seven hundred forty-two thousand three hundred eighty-nine
Scientific notation
2.05742389 × 10^8
Engineering notation
2.05742389 × 10^6
Prime Factorization
205742389
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
205742389
Product of the distinct prime numbers
The prime factorization of 205742389 is 205742389.
Since it has a total of 1 prime factors.
4 , 2 , 87 , 87 , 884 , 822 , 3017 , 3898 , 76212 , 47250 , 701582 , 170275 , 6541375 , 7724091 , 69368348 , 76369738 , 920260497 , 251104357 , 2909389395 , 7482383794
n×2
411484778
n×3
617227167
n×4
822969556
n×5
1028711945
n÷2
102871194.5
n÷3
68580796.333333
n÷3
51435597.25
n÷5
41148477.8
n2
42329930631427321
n3
8.7090610543141E+24
n4
1.7918230272614E+33
n5
3.6865395029398E+41
2 √n
14343.722982545
3 √n
590.34776873376
4 √n
119.76528287674
5 √n
45.990142546994
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
205742390
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
102871195
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
14343.723017404
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999902791
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 205742389 can be divided by 2 positive divisors.
The sum of these divisors (counting 205742389) is 205742390, the average is 102871195.
Base
System
Value
2
Binary
1100010000110110000100110101
3
Ternary
112100010210111111
4
Quaternary
30100312010311
5
Quinary
410132224024
6
Senary
32225435021
8
Octal
1420660465
10
Decimal
205742389
12
Duodecimal
58a9ba71
16
Hexadecimal
c436135
20
Vigesimal
345hfj9
36
Base36
3ehrud
md5
f7fa66afcd2c24c8e19adb2495f94bcf
sha1
3f4cb3b05c23b529f6b4d2baa5461e027cf4139a
sha256
336e41c50496126ca9188e12a7333c14db0adb1dfe3d1b27b956830a545e147b
sha512
8ed7f0c2a681b2e50f928c5cc04844bc884da665a6d846036c3daa29f94ef758fd2571b0c5cd9d847be6d8121e452e8eff105b6d4a6baa6520b460d8aaedaf29
ripemd-160
b16ae37d4f29164b962438c0d85176dc1ff22b4d
Diameter
411484778
Circumference
1292717555.6288
Area
1.3298339909866E+17
Volume
3.6480429637198E+25
Surface area
5.3193359639463E+17
Circumference
1292717555.6288
Perimeter
822969556
Area
42329930631427321
Diagonal
290963676.87884
Surface area
253979583788563926
Volume
8.7090610543141E+24
Space diagonal
356356271.0186
Perimeter
617227167
Area
1.8329397633625E+16
Altitude
178178135.5093
Surface area
1.8329397633625E+16
Volume
1.0263726882122E+24
Height
96987892.292947