20390615 is an odd 8-digits composite number following 20390614
and preceding 20390616 . In scientific notation, it is written as 2.0390615 × 10^7.
The sum of its digits is 26. It has a total of 4 prime factors and 12 positive divisors.
There are 13981968 positive integers (up to 20390615) that are relatively prime to 20390615.
20390615 has 12 divisors, whose sum is 28463976
The reverse of 20390615 is 51609302
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million three hundred ninety thousand six hundred fifteen
Scientific notation
2.0390615 × 10^7
Engineering notation
2.0390615 × 10^6
Prime Factorization
5 × 7 × 7 × 83227
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2912945
Product of the distinct prime numbers
The prime factorization of 20390615 is 5 × 7 × 7 × 83227.
Since it has a total of 4 prime factors.
5 , 9 , 72 , 44 , 886 , 508 , 5354 , 7065 , 7058 , 19068 , 845170 , 462132 , 2645921 , 1005073 , 15450047 , 10797632 , 105929418 , 504674561 , 7154157861 , 1214911476
n×2
40781230
n×3
61171845
n×4
81562460
n×5
101953075
n÷2
10195307.5
n÷3
6796871.6666667
n÷3
5097653.75
n÷5
4078123
n2
415777180078225
n3
8.4779524047608E+21
n4
1.728706634738E+29
n5
3.5249391436888E+36
2 √n
4515.5968597739
3 √n
273.1975340032
4 √n
67.198190896585
5 √n
28.965835833033
1 , 5 , 7 , 35 , 49 , 245 , 83227 , 416135 , 582589 , 2912945 , 4078123 , 20390615
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20390614
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20390615 can be divided by 12 positive divisors.
The sum of these divisors (counting 20390615) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001101110010001011010111
3
Ternary
1102100221122222
4
Quaternary
1031302023113
5
Quinary
20204444430
6
Senary
2005012555
8
Octal
115621327
10
Decimal
20390615
12
Duodecimal
69b415b
16
Hexadecimal
13722d7
20
Vigesimal
678gaf
36
Base36
c51hz
md5
71c438c25947c558cb6d33f0f67e7268
sha1
7de836fe7a70f294db2238fcf88b73271a8aa30a
sha256
42158e8c37b76b0e26945464faa7477b754a6b8d3c5c4fc5b939ac3aa5bf34c8
sha512
0b38a99505aa3317677e1c6322e5894a7521c92dbe04deb97f53d8262da6c6f74a469661eda49a728b39d164a1cc18bf52b3673b56427cf7a5b8293b81a3ffd7
ripemd-160
e9775e40c9c1658b58c58f80ececbb49459b6f98
Diameter
40781230
Circumference
128118012.57236
Area
1.306202534464E+15
Volume
3.5512363989707E+22
Surface area
5.2248101378561E+15
Circumference
128118012.57236
Perimeter
81562460
Area
415777180078225
Diagonal
28836684.278128
Surface area
2494663080469350
Volume
8.4779524047608E+21
Space diagonal
35317581.177576
Perimeter
61171845
Area
1.800368001308E+14
Altitude
17658790.588788
Surface area
1.800368001308E+14
Volume
9.9913627266385E+20
Height
9612228.0927094