20809742 is an even 8-digits composite number following 20809741
and preceding 20809743 . In scientific notation, it is written as 2.0809742 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 10069200 positive integers (up to 20809742) that are relatively prime to 20809742.
20809742 has 8 divisors, whose sum is 32221632
The reverse of 20809742 is 24790802
Previous prime number is 31
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million eight hundred nine thousand seven hundred forty-two
Scientific notation
2.0809742 × 10^7
Engineering notation
2.0809742 × 10^6
Prime Factorization
2 × 31 × 335641
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20809742
Product of the distinct prime numbers
The prime factorization of 20809742 is 2 × 31 × 335641.
Since it has a total of 3 prime factors.
3 , 6 , 27 , 5 , 999 , 669 , 8983 , 4512 , 14530 , 50345 , 686375 , 633715 , 6766129 , 4412481 , 66743715 , 79699271 , 116065845 , 425546365 , 6074202389 , 3222822449
n×2
41619484
n×3
62429226
n×4
83238968
n×5
104048710
n÷2
10404871
n÷3
6936580.6666667
n÷3
5202435.5
n÷5
4161948.4
n2
433045362106564
n3
9.0115622597342E+21
n4
1.8752828564201E+29
n5
3.9024152419124E+36
2 √n
4561.7696127709
3 √n
275.0567023573
4 √n
67.540873645304
5 √n
29.08394663945
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
-20809741
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 20809742 can be divided by 8 positive divisors.
The sum of these divisors (counting 20809742) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111011000100000001110
3
Ternary
1110011020121012
4
Quaternary
1033120200032
5
Quinary
20311402432
6
Senary
2022005222
8
Octal
117304016
10
Decimal
20809742
12
Duodecimal
6b76812
16
Hexadecimal
13d880e
20
Vigesimal
6a1472
36
Base36
ce0we
md5
55e436e3a42023dc856832cab1acea62
sha1
0d8d068411afb2c14e748512ba4abc418dbc71bf
sha256
b54820c4379fa7d3f772e01d5692b7825c0f8b607f9d19cac7789b090c6051c4
sha512
fbe7d787bd0f77cc930a042b4969c1c28223db76e6633039efd8cbe340961ae3392b5721da2df57c722b71f82a66968ef4f3dff3c2911b7da6e9847b0d34ca59
ripemd-160
b43b14aec4a97a1b1d21e92b2168d370b865381e
Diameter
41619484
Circumference
130751465.1806
Area
1.3604521282651E+15
Volume
3.7747543723397E+22
Surface area
5.4418085130605E+15
Circumference
130751465.1806
Perimeter
83238968
Area
433045362106564
Diagonal
29429419.365885
Surface area
2598272172639384
Volume
9.0115622597342E+21
Space diagonal
36043530.4364
Perimeter
62429226
Area
1.8751414228766E+14
Altitude
18021765.2182
Surface area
1.8751414228766E+14
Volume
1.0620227971571E+21
Height
9809806.455295