20809312 is an even 8-digits composite number following 20809311
and preceding 20809313 . In scientific notation, it is written as 2.0809312 × 10^7.
The sum of its digits is 25. It has a total of 6 prime factors and 12 positive divisors.
There are 10404640 positive integers (up to 20809312) that are relatively prime to 20809312.
20809312 has 12 divisors, whose sum is 40968396
The reverse of 20809312 is 21390802
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million eight hundred nine thousand three hundred twelve
Scientific notation
2.0809312 × 10^7
Engineering notation
2.0809312 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2 × 650291
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
1300582
Product of the distinct prime numbers
The prime factorization of 20809312 is 2 × 2 × 2 × 2 × 2 × 650291.
Since it has a total of 6 prime factors.
6 , 5 , 31 , 100 , 72 , 343 , 9081 , 4426 , 73352 , 51151 , 815169 , 171043 , 5123930 , 1231771 , 92030525 , 58204995 , 608138271 , 774909704 , 5603442483 , 2282220736
n×2
41618624
n×3
62427936
n×4
83237248
n×5
104046560
n÷2
10404656
n÷3
6936437.3333333
n÷3
5202328
n÷5
4161862.4
n2
433027465913344
n3
9.0110036427601E+21
n4
1.8751278623533E+29
n5
3.9020120727603E+36
2 √n
4561.7224816948
3 √n
275.0548078088
4 √n
67.540524736597
5 √n
29.083826443818
1 , 2 , 4 , 8 , 16 , 32 , 650291 , 1300582 , 2601164 , 5202328 , 10404656 , 20809312
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
-20809311
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 20809312 can be divided by 12 positive divisors.
The sum of these divisors (counting 20809312) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001111011000011001100000
3
Ternary
1110011020000021
4
Quaternary
1033120121200
5
Quinary
20311344222
6
Senary
2022003224
8
Octal
117303140
10
Decimal
20809312
12
Duodecimal
6b76514
16
Hexadecimal
13d8660
20
Vigesimal
6a135c
36
Base36
ce0kg
md5
9fafb059f6751c99abcd48ead009a925
sha1
bb96112c4444e5e62fc8b90da38a36c4d18195a9
sha256
8bcc221ec7c77b1d7f1bcef510ec5492cf312c5b6c86aa7801d5271ca3bf4476
sha512
39231b03a3cb59a02e9fb086dd247d21643bdb268c41a40bdfeb3eb354e7cf829508585a71b025d41d166ac2f2ea1626c9517873803c8a122d5caf9d3fa04ec3
ripemd-160
673165194ef0ab2d0a60f42f032bc5de0ea839e8
Diameter
41618624
Circumference
130748763.41092
Area
1.360395905716E+15
Volume
3.7745203794088E+22
Surface area
5.4415836228639E+15
Circumference
130748763.41092
Perimeter
83237248
Area
433027465913344
Diagonal
29428811.254053
Surface area
2598164795480064
Volume
9.0110036427601E+21
Space diagonal
36042785.654553
Perimeter
62427936
Area
1.8750639300868E+14
Altitude
18021392.827276
Surface area
1.8750639300868E+14
Volume
1.0619569635154E+21
Height
9809603.7513511