20809748 is an even 8-digits composite number following 20809747
and preceding 20809749 . In scientific notation, it is written as 2.0809748 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 6 positive divisors.
There are 10404872 positive integers (up to 20809748) that are relatively prime to 20809748.
20809748 has 6 divisors, whose sum is 36417066
The reverse of 20809748 is 84790802
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million eight hundred nine thousand seven hundred forty-eight
Scientific notation
2.0809748 × 10^7
Engineering notation
2.0809748 × 10^6
Prime Factorization
2 × 2 × 5202437
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
10404874
Product of the distinct prime numbers
The prime factorization of 20809748 is 2 × 2 × 5202437.
Since it has a total of 3 prime factors.
1 , 10 , 81 , 95 , 958 , 193 , 5122 , 9702 , 32356 , 3488 , 890765 , 473225 , 9075257 , 6077907 , 48713871 , 48507590 , 638600870 , 748140774 , 6972980132 , 7312159919
n×2
41619496
n×3
62429244
n×4
83238992
n×5
104048740
n÷2
10404874
n÷3
6936582.6666667
n÷3
5202437
n÷5
4161949.6
n2
433045611823504
n3
9.0115700545529E+21
n4
1.8752850191959E+29
n5
3.9024208677642E+36
2 √n
4561.7702704104
3 √n
275.05672879268
4 √n
67.540878513759
5 √n
29.083948316584
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20809747
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20809748 can be divided by 6 positive divisors.
The sum of these divisors (counting 20809748) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1001111011000100000010100
3
Ternary
1110011020121102
4
Quaternary
1033120200110
5
Quinary
20311402443
6
Senary
2022005232
8
Octal
117304024
10
Decimal
20809748
12
Duodecimal
6b76818
16
Hexadecimal
13d8814
20
Vigesimal
6a1478
36
Base36
ce0wk
md5
869ac983deb5a1f11a68f40f8c82a8f5
sha1
04c74ebcb82a4fd305df1f04e611dadd34c4e45e
sha256
3d5275d71dfe2eecf2104feba5ddfe7bfd578eabf06d937e6cdf82551be1ed6b
sha512
98ea2a628536a3fd8082ea945246427a0a3dc3854d7cee846557d59ed1824c4b775ef623d654a6f1383c21af218c5fb7d1a50a83cb5e18f952db98bfcbdde55a
ripemd-160
a76aafc3ff137aa1300adef475f683c3cf9bc273
Diameter
41619496
Circumference
130751502.87971
Area
1.360452912774E+15
Volume
3.7747576374258E+22
Surface area
5.4418116510961E+15
Circumference
130751502.87971
Perimeter
83238992
Area
433045611823504
Diagonal
29429427.851166
Surface area
2598273670941024
Volume
9.0115700545529E+21
Space diagonal
36043540.828705
Perimeter
62429244
Area
1.8751425041826E+14
Altitude
18021770.414352
Surface area
1.8751425041826E+14
Volume
1.0620237157853E+21
Height
9809809.2837221