30897731 is an odd 8-digits composite number following 30897730
and preceding 30897732 . In scientific notation, it is written as 3.0897731 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 28869120 positive integers (up to 30897731) that are relatively prime to 30897731.
30897731 has 8 divisors, whose sum is 32995200
The reverse of 30897731 is 13779803
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
thirty million eight hundred ninety-seven thousand seven hundred thirty-one
Scientific notation
3.0897731 × 10^7
Engineering notation
3.0897731 × 10^6
Prime Factorization
31 × 29 × 34369
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
30897731
Product of the distinct prime numbers
The prime factorization of 30897731 is 31 × 29 × 34369.
Since it has a total of 3 prime factors.
4 , 4 , 39 , 10 , 159 , 470 , 6884 , 1114 , 86971 , 78294 , 292009 , 551280 , 8560826 , 9582590 , 65128311 , 92006422 , 251435627 , 510631478 , 7547443949 , 2510246513
n×2
61795462
n×3
92693193
n×4
123590924
n×5
154488655
n÷2
15448865.5
n÷3
10299243.666667
n÷3
7724432.75
n÷5
6179546.2
n2
954669780948361
n3
2.9497130085571E+22
n4
9.1139439065599E+29
n5
2.8160018717398E+37
2 √n
5558.572748467
3 √n
313.79223750557
4 √n
74.555836448041
5 √n
31.476418982264
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
-30897730
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 30897731 can be divided by 8 positive divisors.
The sum of these divisors (counting 30897731) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110101110111011001000011
3
Ternary
2011010202201102
4
Quaternary
1311313121003
5
Quinary
30402211411
6
Senary
3022125015
8
Octal
165673103
10
Decimal
30897731
12
Duodecimal
a42076b
16
Hexadecimal
1d77643
20
Vigesimal
9d246b
36
Base36
ie8ub
md5
d6f5c6c00cbf348337392b40ede01e1e
sha1
3387ffc11610778d61aff216a4880de5442654f3
sha256
272cc999f0b18fdcfedef5aaca957026d5223daf94a6a1c6a69a7e70730861fa
sha512
65d42d57f157b8b2f72b5d0ea8ea31ccb03ca9bf2921a106ab5dac79f74dba9b9c511013c5b5dd258a6910fd2de40b3519f8fd79abf88cbe7ecdbd64db6c9ebf
ripemd-160
dc6b1bd7973eeade057f3252b0a896cd05c6f06e
Diameter
61795462
Circumference
194136169.44439
Area
2.9991835704315E+15
Volume
1.2355728957175E+23
Surface area
1.1996734281726E+16
Circumference
194136169.44439
Perimeter
123590924
Area
954669780948361
Diagonal
43695990.226756
Surface area
5728018685690166
Volume
2.9497130085571E+22
Space diagonal
53516439.930596
Perimeter
92693193
Area
4.133841412633E+14
Altitude
26758219.965298
Surface area
4.133841412633E+14
Volume
3.4762701181749E+21
Height
14565330.075585