30806985 is an odd 8-digits composite number following 30806984
and preceding 30806986 . In scientific notation, it is written as 3.0806985 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 14936640 positive integers (up to 30806985) that are relatively prime to 30806985.
30806985 has 8 divisors, whose sum is 38088840
The reverse of 30806985 is 58960803
Previous prime number is 33
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
thirty million eight hundred six thousand nine hundred eighty-five
Scientific notation
3.0806985 × 10^7
Engineering notation
3.0806985 × 10^6
Prime Factorization
5 × 33 × 186709
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
30806985
Product of the distinct prime numbers
The prime factorization of 30806985 is 5 × 33 × 186709.
Since it has a total of 3 prime factors.
8 , 8 , 90 , 84 , 842 , 44 , 6985 , 6044 , 86983 , 58855 , 425597 , 350902 , 456033 , 862652 , 99593688 , 78612915 , 19624092 , 544849688 , 7014728832 , 4510419151
n×2
61613970
n×3
92420955
n×4
123227940
n×5
154034925
n÷2
15403492.5
n÷3
10268995
n÷3
7701746.25
n÷5
6161397
n2
949070324790225
n3
2.9237995259758E+22
n4
9.0073448139742E+29
n5
2.7748913657393E+37
2 √n
5550.404039347
3 √n
313.4847358191
4 √n
74.501033813948
5 √n
31.457908104105
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
-30806984
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 30806985 can be divided by 8 positive divisors.
The sum of these divisors (counting 30806985) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110101100001001111001001
3
Ternary
2010222011020110
4
Quaternary
1311201033021
5
Quinary
30341310420
6
Senary
3020144533
8
Octal
165411711
10
Decimal
30806985
12
Duodecimal
a398149
16
Hexadecimal
1d613c9
20
Vigesimal
9cah95
36
Base36
icatl
md5
a0b854e43922414e1970a2fae132f993
sha1
3f96e4e674bea5116ce8d04525ea47cd01ee4954
sha256
71d8909b9979f3f1839c9e8efade320eba2f56392b65d95c970ee1f1d9fcfc1b
sha512
d0c99f278afe168ae1e1d64ec5927a736e529637258d0f5846421fa53722f33ea5f6f41d047acf1744b4c6ffea11a41257b46a7168c3936c4dca9a91ab7e1d0b
ripemd-160
a3d3590a490625a2a1b120840a31895cf159d2ce
Diameter
61613970
Circumference
193565995.5105
Area
2.981592360101E+15
Volume
1.2247182815166E+23
Surface area
1.1926369440404E+16
Circumference
193565995.5105
Perimeter
123227940
Area
949070324790225
Diagonal
43567656.002825
Surface area
5694421948741350
Volume
2.9237995259758E+22
Space diagonal
53359263.248012
Perimeter
92420955
Area
4.1095950562314E+14
Altitude
26679631.624006
Surface area
4.1095950562314E+14
Volume
3.4457307860791E+21
Height
14522552.000942