20512109 is an odd 8-digits composite number following 20512108
and preceding 20512110 . In scientific notation, it is written as 2.0512109 × 10^7.
The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors.
There are 20389116 positive integers (up to 20512109) that are relatively prime to 20512109.
20512109 has 4 divisors, whose sum is 20635104
The reverse of 20512109 is 90121502
Previous prime number is 167
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million five hundred twelve thousand one hundred nine
Scientific notation
2.0512109 × 10^7
Engineering notation
2.0512109 × 10^6
Prime Factorization
167 × 122827
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20512109
Product of the distinct prime numbers
The prime factorization of 20512109 is 167 × 122827.
Since it has a total of 2 prime factors.
1 , 2 , 53 , 91 , 571 , 56 , 3616 , 2736 , 86779 , 86418 , 765318 , 684017 , 4413775 , 4643439 , 1372088 , 96836530 , 633059934 , 124978121 , 130455083 , 6518226263
n×2
41024218
n×3
61536327
n×4
82048436
n×5
102560545
n÷2
10256054.5
n÷3
6837369.6666667
n÷3
5128027.25
n÷5
4102421.8
n2
420746615627881
n3
8.6304004411402E+21
n4
1.7702771456232E+29
n5
3.6312117771231E+36
2 √n
4529.0295870087
3 √n
273.73906018847
4 √n
67.298065254572
5 √n
29.000271457038
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
-20512108
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 20512109 can be divided by 4 positive divisors.
The sum of these divisors (counting 20512109) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110001111110101101101
3
Ternary
1102121010022202
4
Quaternary
1032033311231
5
Quinary
20222341414
6
Senary
2011351245
8
Octal
116176555
10
Decimal
20512109
12
Duodecimal
6a52525
16
Hexadecimal
138fd6d
20
Vigesimal
684059
36
Base36
c7n8t
md5
1275a801c752f6c97c0cff11733d0413
sha1
131904e5c0a29bca644e7cb4e688c91dfabfca77
sha256
19d37b2ec3b0ce7212b8705c1c6309901bdb27839ed5c92fc8f77018cf0b0311
sha512
51f25c44208f5b7095340deb308c61688140dd58f651bfc86919a5fe6b11a30315458512d48b0c6a3733fc4141c32b268b1bb79a859f84423d04872ab5901c25
ripemd-160
60b7ca043e1327232bbdceb652ea24927f512f20
Diameter
41024218
Circumference
128881381.88807
Area
1.3218144766793E+15
Volume
3.6150936831232E+22
Surface area
5.2872579067173E+15
Circumference
128881381.88807
Perimeter
82048436
Area
420746615627881
Diagonal
29008502.740675
Surface area
2524479693767286
Volume
8.6304004411402E+21
Space diagonal
35528014.958391
Perimeter
61536327
Area
1.8218862884504E+14
Altitude
17764007.479195
Surface area
1.8218862884504E+14
Volume
1.0171024460476E+21
Height
9669500.9135584