205742489 is an odd 9-digits composite number following 205742488
and preceding 205742490 . In scientific notation, it is written as 2.05742489 × 10^8.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 203254576 positive integers (up to 205742489) that are relatively prime to 205742489.
205742489 has 8 divisors, whose sum is 208241280
The reverse of 205742489 is 984247502
Previous prime number is 389
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 41
Digital Root 5
Name
two hundred five million seven hundred forty-two thousand four hundred eighty-nine
Scientific notation
2.05742489 × 10^8
Engineering notation
2.05742489 × 10^6
Prime Factorization
107 × 389 × 4943
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
205742489
Product of the distinct prime numbers
The prime factorization of 205742489 is 107 × 389 × 4943.
Since it has a total of 3 prime factors.
9 , 8 , 43 , 1 , 74 , 451 , 2213 , 3492 , 85185 , 35745 , 943743 , 83283 , 3949127 , 1553679 , 9632995 , 43366812 , 254551768 , 21604152 , 9135823326 , 3598518762
n×2
411484978
n×3
617227467
n×4
822969956
n×5
1028712445
n÷2
102871244.5
n÷3
68580829.666667
n÷3
51435622.25
n÷5
41148497.8
n2
42329971779915121
n3
8.7090737532995E+24
n4
1.7918265108884E+33
n5
3.6865484620637E+41
2 √n
14343.72646839
3 √n
590.34786437888
4 √n
119.76529742956
5 √n
45.990147017647
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
-205742488
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 205742489 can be divided by 8 positive divisors.
The sum of these divisors (counting 205742489) is 1, the average is 0.125.
Base
System
Value
2
Binary
1100010000110110000110011001
3
Ternary
112100010210122012
4
Quaternary
30100312012121
5
Quinary
410132224424
6
Senary
32225435305
8
Octal
1420660631
10
Decimal
205742489
12
Duodecimal
58a9bb35
16
Hexadecimal
c436199
20
Vigesimal
345hg49
36
Base36
3ehrx5
md5
74af4eda340668802758e41b27216ded
sha1
6f0fa0f3a018eaa49ef3349a9f39562210975f3b
sha256
33f85ae5dcad5a435348cc917587d63a22fe09654ddee7cf504f746ea9c02ee9
sha512
42adbe8264b59b280de2996a9e0d911a27d69ee7d1287aea71c6497fc8799a9dafdb8d4f0a448c62c243c7ce9b9dfcb42dd6578588a7837fc738688413d4dcb2
ripemd-160
c3006a332d59b02973568a4dba559f82bd4c2795
Diameter
411484978
Circumference
1292718183.9474
Area
1.3298352837044E+17
Volume
3.6480482830583E+25
Surface area
5.3193411348178E+17
Circumference
1292718183.9474
Perimeter
822969956
Area
42329971779915121
Diagonal
290963818.3002
Surface area
253979830679490726
Volume
8.7090737532995E+24
Space diagonal
356356444.22368
Perimeter
617227467
Area
1.8329415451442E+16
Altitude
178178222.11184
Surface area
1.8329415451442E+16
Volume
1.026374184802E+24
Height
96987939.433399