20807868 is an even 8-digits composite number following 20807867
and preceding 20807869 . In scientific notation, it is written as 2.0807868 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 12 positive divisors.
There are 6935952 positive integers (up to 20807868) that are relatively prime to 20807868.
20807868 has 12 divisors, whose sum is 48551720
The reverse of 20807868 is 86870802
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million eight hundred seven thousand eight hundred sixty-eight
Scientific notation
2.0807868 × 10^7
Engineering notation
2.0807868 × 10^6
Prime Factorization
2 × 2 × 3 × 1733989
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10403934
Product of the distinct prime numbers
The prime factorization of 20807868 is 2 × 2 × 3 × 1733989.
Since it has a total of 4 prime factors.
6 , 5 , 6 , 6 , 12 , 407 , 990 , 2576 , 96248 , 50096 , 987918 , 312440 , 7543771 , 6818656 , 79430 , 83809373 , 648062901 , 483237966 , 5987368062 , 4453858503
n×2
41615736
n×3
62423604
n×4
83231472
n×5
104039340
n÷2
10403934
n÷3
6935956
n÷3
5201967
n÷5
4161573.6
n2
432967370705424
n3
9.0091278979455E+21
n4
1.8746074409557E+29
n5
3.9006584183224E+36
2 √n
4561.5642054015
3 √n
275.04844545958
4 √n
67.539353012903
5 √n
29.083422795575
1 , 2 , 3 , 4 , 6 , 12 , 1733989 , 3467978 , 5201967 , 6935956 , 10403934 , 20807868
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
-20807867
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 20807868 can be divided by 12 positive divisors.
The sum of these divisors (counting 20807868) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001111011000000010111100
3
Ternary
1110011011000210
4
Quaternary
1033120002330
5
Quinary
20311322433
6
Senary
2021552420
8
Octal
117300274
10
Decimal
20807868
12
Duodecimal
6b75710
16
Hexadecimal
13d80bc
20
Vigesimal
6a0jd8
36
Base36
cdzgc
md5
9ce26976d4ca644097696bb616093fef
sha1
6640fd11678beadeb2f83b0a28dab44405cec3a7
sha256
b63311e4198bdbb182ec05c3112e46cb89a923335a1b47b09693602c6a1551b6
sha512
92081bc571c123d52fa920e832c5ddc8f07c09580c3bb473ae59bb3b67b526a6223115d80c0194365673df7e61c20767b61e87c46a39860285e03204ce774d81
ripemd-160
a12ad32816a7c0a19fda526f90ed94e762f08437
Diameter
41615736
Circumference
130739690.49133
Area
1.3602071110522E+15
Volume
3.7737346692582E+22
Surface area
5.440828444209E+15
Circumference
130739690.49133
Perimeter
83231472
Area
432967370705424
Diagonal
29426769.129669
Surface area
2597804224232544
Volume
9.0091278979455E+21
Space diagonal
36040284.573187
Perimeter
62423604
Area
1.8748037102033E+14
Altitude
18020142.286593
Surface area
1.8748037102033E+14
Volume
1.061735904869E+21
Height
9808923.043223