209657961 is an odd 9-digits composite number following 209657960
and preceding 209657962 . In scientific notation, it is written as 2.09657961 × 10^8.
The sum of its digits is 45. It has a total of 2 prime factors and 4 positive divisors.
There are 139771968 positive integers (up to 209657961) that are relatively prime to 209657961.
209657961 has 4 divisors, whose sum is 232953300
The reverse of 209657961 is 169756902
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 45
Digital Root 9
Name
two hundred nine million six hundred fifty-seven thousand nine hundred sixty-one
Scientific notation
2.09657961 × 10^8
Engineering notation
2.09657961 × 10^6
Prime Factorization
9 × 23295329
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
209657961
Product of the distinct prime numbers
The prime factorization of 209657961 is 9 × 23295329.
Since it has a total of 2 prime factors.
7 , 4 , 69 , 41 , 560 , 79 , 4390 , 9118 , 72315 , 46437 , 256964 , 331105 , 6118080 , 7315915 , 63819213 , 32705873 , 674172520 , 795956236 , 946766699 , 5442269032
n×2
419315922
n×3
628973883
n×4
838631844
n×5
1048289805
n÷2
104828980.5
n÷3
69885987
n÷3
52414490.25
n÷5
41931592.2
n2
43956460610677521
n3
9.2158219044115E+24
n4
1.932170429418E+33
n5
4.0509491253628E+41
2 √n
14479.570470149
3 √n
594.06931306934
4 √n
120.33108688177
5 √n
46.163876611928
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-209657960
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 209657961 can be divided by 4 positive divisors.
The sum of these divisors (counting 209657961) is 1, the average is 0.25.
Base
System
Value
2
Binary
1100011111110010000001101001
3
Ternary
112121111201122200
4
Quaternary
30133302001221
5
Quinary
412133023321
6
Senary
32445410413
8
Octal
1437620151
10
Decimal
209657961
12
Duodecimal
5a269a09
16
Hexadecimal
c7f2069
20
Vigesimal
35a74i1
36
Base36
3gtp49
md5
57fa3a0a6b144247dc1312fbeb866062
sha1
617008653efa2d56b3f0a3a33eb563e586e51327
sha256
4427f90b8fbd766a5de36d1e38e8e32c7a5fdf80e9c76d427cba7677d1d2a298
sha512
73cb9f8388d405fb3c10d56b43c4ccd918f8e7c62e041ad3c092a04741500d9221f2673858c58a93d1522fe1917cd25ea1b0f88c9a176f198d1e1b11e9af78e0
ripemd-160
a11fb2ef524252e4f08aacffdcf5f9cf577c963d
Diameter
419315922
Circumference
1317319820.0884
Area
1.3809329373231E+17
Volume
3.8603144522255E+25
Surface area
5.5237317492925E+17
Circumference
1317319820.0884
Perimeter
838631844
Area
43956460610677521
Diagonal
296501131.90569
Surface area
263738763664065126
Volume
9.2158219044115E+24
Space diagonal
363138240.66329
Perimeter
628973883
Area
1.9033705774648E+16
Altitude
181569120.33165
Surface area
1.9033705774648E+16
Volume
1.0860950271361E+24
Height
98833710.63523