20809718 is an even 8-digits composite number following 20809717
and preceding 20809719 . In scientific notation, it is written as 2.0809718 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 10404858 positive integers (up to 20809718) that are relatively prime to 20809718.
20809718 has 4 divisors, whose sum is 31214580
The reverse of 20809718 is 81790802
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million eight hundred nine thousand seven hundred eighteen
Scientific notation
2.0809718 × 10^7
Engineering notation
2.0809718 × 10^6
Prime Factorization
2 × 10404859
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20809718
Product of the distinct prime numbers
The prime factorization of 20809718 is 2 × 10404859.
Since it has a total of 2 prime factors.
6 , 6 , 42 , 78 , 497 , 549 , 3790 , 7782 , 16016 , 76487 , 451883 , 885195 , 6426734 , 836220 , 86217801 , 32921839 , 197616500 , 987760780 , 7105345922 , 500085759
n×2
41619436
n×3
62429154
n×4
83238872
n×5
104048590
n÷2
10404859
n÷3
6936572.6666667
n÷3
5202429.5
n÷5
4161943.6
n2
433044363239524
n3
9.0115310805041E+21
n4
1.8752742053352E+29
n5
3.9023927385701E+36
2 √n
4561.766982212
3 √n
275.05659661575
4 √n
67.540854171472
5 √n
29.083939930909
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
-20809717
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 20809718 can be divided by 4 positive divisors.
The sum of these divisors (counting 20809718) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111011000011111110110
3
Ternary
1110011020120022
4
Quaternary
1033120133312
5
Quinary
20311402333
6
Senary
2022005142
8
Octal
117303766
10
Decimal
20809718
12
Duodecimal
6b767b2
16
Hexadecimal
13d87f6
20
Vigesimal
6a145i
36
Base36
ce0vq
md5
73cd3254a50f86ab49f56f551c6f16e6
sha1
2c99855ae1d615b6eb4697795fd516300bf408e6
sha256
453db30271f82b5cbdaee8dd6c147ffd2cd8139623e931d9148d557fe1cba3b5
sha512
30f7b4414cb6e88a4545059da0997a3932c31b82d6bfe9186e68b24cb010f6acfe7eaf228b67b5fc5c58d0d49d067e7ef651dc46cd1330f522191ca370ddeaa2
ripemd-160
271b737d74deef7464bb6ee95687bd4e7fc73588
Diameter
41619436
Circumference
130751314.38415
Area
1.3604489902318E+15
Volume
3.7747413120144E+22
Surface area
5.441795960927E+15
Circumference
130751314.38415
Perimeter
83238872
Area
433044363239524
Diagonal
29429385.42476
Surface area
2598266179437144
Volume
9.0115310805041E+21
Space diagonal
36043488.867181
Perimeter
62429154
Area
1.8751370976554E+14
Altitude
18021744.43359
Surface area
1.8751370976554E+14
Volume
1.0620191226496E+21
Height
9809795.1415865