20809660 is an even 8-digits composite number following 20809659
and preceding 20809661 . In scientific notation, it is written as 2.0809660 × 10^7.
The sum of its digits is 31. It has a total of 4 prime factors and 12 positive divisors.
There are 8323856 positive integers (up to 20809660) that are relatively prime to 20809660.
20809660 has 12 divisors, whose sum is 43700328
The reverse of 20809660 is 06690802
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million eight hundred nine thousand six hundred sixty
Scientific notation
2.0809660 × 10^7
Engineering notation
2.0809660 × 10^6
Prime Factorization
2 × 2 × 5 × 1040483
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10404830
Product of the distinct prime numbers
The prime factorization of 20809660 is 2 × 2 × 5 × 1040483.
Since it has a total of 4 prime factors.
4 , 3 , 79 , 16 , 495 , 116 , 8319 , 4564 , 51375 , 34488 , 897940 , 936515 , 900912 , 8718451 , 6276748 , 49775041 , 312099794 , 564390851 , 4896872093 , 5867765362
n×2
41619320
n×3
62428980
n×4
83238640
n×5
104048300
n÷2
10404830
n÷3
6936553.3333333
n÷3
5202415
n÷5
4161932
n2
433041949315600
n3
9.0114557309949E+21
n4
1.8752532986705E+29
n5
3.9023383559213E+36
2 √n
4561.7606250219
3 √n
275.05634107332
4 √n
67.540807109642
5 √n
29.083923718576
1 , 2 , 4 , 5 , 10 , 20 , 1040483 , 2080966 , 4161932 , 5202415 , 10404830 , 20809660
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
-20809659
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 20809660 can be divided by 12 positive divisors.
The sum of these divisors (counting 20809660) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001111011000011110111100
3
Ternary
1110011020111011
4
Quaternary
1033120132330
5
Quinary
20311402120
6
Senary
2022005004
8
Octal
117303674
10
Decimal
20809660
12
Duodecimal
6b76764
16
Hexadecimal
13d87bc
20
Vigesimal
6a1430
36
Base36
ce0u4
md5
10b693ff3f601f7bed6a976729f7a5cb
sha1
ec8f0e8f4081f11e513b4002552f0fbec6adb1ac
sha256
07f0daeb40a47922a4e2f1d47e7bb047940ec3ff5ba12f51b73c1068aab0fdd7
sha512
abde82bc7570d39be002ccad032da74acc4bf574327324f964701658ecf7ddcd7d8ae9dd9058fba2350df66a065cf06dee55941b5edb565cafa554f92d093cb6
ripemd-160
9cf1efb75806385888396df8aca82db75f708dcc
Diameter
41619320
Circumference
130750949.9594
Area
1.3604414066661E+15
Volume
3.7747097496857E+22
Surface area
5.4417656266644E+15
Circumference
130750949.9594
Perimeter
83238640
Area
433041949315600
Diagonal
29429303.400373
Surface area
2598251695893600
Volume
9.0114557309949E+21
Space diagonal
36043388.408234
Perimeter
62428980
Area
1.8751266450582E+14
Altitude
18021694.204117
Surface area
1.8751266450582E+14
Volume
1.0620102426248E+21
Height
9809767.8001243