30897911 is an odd 8-digits composite number following 30897910
and preceding 30897912 . In scientific notation, it is written as 3.0897911 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 28089000 positive integers (up to 30897911) that are relatively prime to 30897911.
30897911 has 4 divisors, whose sum is 33706824
The reverse of 30897911 is 11979803
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
thirty million eight hundred ninety-seven thousand nine hundred eleven
Scientific notation
3.0897911 × 10^7
Engineering notation
3.0897911 × 10^6
Prime Factorization
11 × 2808901
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
30897911
Product of the distinct prime numbers
The prime factorization of 30897911 is 11 × 2808901.
Since it has a total of 2 prime factors.
1 , 5 , 5 , 98 , 13 , 598 , 5828 , 5546 , 90855 , 82625 , 731506 , 142754 , 5821956 , 8908283 , 80107229 , 95527313 , 390250059 , 495679417 , 1672020148 , 9703992301
n×2
61795822
n×3
92693733
n×4
123591644
n×5
154489555
n÷2
15448955.5
n÷3
10299303.666667
n÷3
7724477.75
n÷5
6179582.2
n2
954680904163921
n3
2.9497645610256E+22
n4
9.1141562877524E+29
n5
2.8160838981906E+37
2 √n
5558.5889396501
3 √n
313.79284685445
4 √n
74.555945032238
5 √n
31.476455656427
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
-30897910
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 30897911 can be divided by 4 positive divisors.
The sum of these divisors (counting 30897911) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110101110111011011110111
3
Ternary
2011010202222002
4
Quaternary
1311313123313
5
Quinary
30402213121
6
Senary
3022125515
8
Octal
165673367
10
Decimal
30897911
12
Duodecimal
a42089b
16
Hexadecimal
1d776f7
20
Vigesimal
9d24fb
36
Base36
ie8zb
md5
d434b1006aea17eb2fc41487eb6e3597
sha1
27bac6a734f7a798f474df6ce2ec37327f178ec1
sha256
3175998e9c16439ca9b38c47a8b502677e895368a9ed4abc0bc11799a8f335e1
sha512
95ce3d8c05a1697676f3bbee2dc3205f344f06ccfc4768e13a504590c03b7957d912b1d2e4e0cf2f3f452b022da2269e14c43a1285ce888a0f16125551db3a71
ripemd-160
b051c02446a01af7cf79e1e8e92d3a3f4b3174f0
Diameter
61795822
Circumference
194137300.41774
Area
2.9992185150438E+15
Volume
1.235594489965E+23
Surface area
1.1996874060175E+16
Circumference
194137300.41774
Perimeter
123591644
Area
954680904163921
Diagonal
43696244.785197
Surface area
5728085424983526
Volume
2.9497645610256E+22
Space diagonal
53516751.699741
Perimeter
92693733
Area
4.1338895775693E+14
Altitude
26758375.849871
Surface area
4.1338895775693E+14
Volume
3.4763308733416E+21
Height
14565414.928399