20531909 is an odd 8-digits composite number following 20531908
and preceding 20531910 . In scientific notation, it is written as 2.0531909 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 20241760 positive integers (up to 20531909) that are relatively prime to 20531909.
20531909 has 8 divisors, whose sum is 20824128
The reverse of 20531909 is 90913502
Previous prime number is 311
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million five hundred thirty-one thousand nine hundred nine
Scientific notation
2.0531909 × 10^7
Engineering notation
2.0531909 × 10^6
Prime Factorization
107 × 311 × 617
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20531909
Product of the distinct prime numbers
The prime factorization of 20531909 is 107 × 311 × 617.
Since it has a total of 3 prime factors.
9 , 8 , 74 , 63 , 180 , 539 , 6371 , 4775 , 15165 , 35296 , 182393 , 747848 , 3857049 , 863747 , 21762304 , 52746474 , 921192788 , 642483385 , 4857775615 , 4543944414
n×2
41063818
n×3
61595727
n×4
82127636
n×5
102659545
n÷2
10265954.5
n÷3
6843969.6666667
n÷3
5132977.25
n÷5
4106381.8
n2
421559287184281
n3
8.6554169225725E+21
n4
1.7771223261132E+29
n5
3.6487713881624E+36
2 √n
4531.2149584852
3 √n
273.82711046112
4 √n
67.31429980684
5 √n
29.00586799316
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
-20531908
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 20531909 can be divided by 8 positive divisors.
The sum of these divisors (counting 20531909) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110010100101011000101
3
Ternary
1102122010111002
4
Quaternary
1032110223011
5
Quinary
20224010114
6
Senary
2012023045
8
Octal
116245305
10
Decimal
20531909
12
Duodecimal
6a61a85
16
Hexadecimal
1394ac5
20
Vigesimal
6869f9
36
Base36
c82it
md5
72672b2195aa9309988cbe89087f33c3
sha1
50b4b21a488b45ca9d161614409a8dd040639bf3
sha256
231b86ac0e9956074d923c85d6500c6a4d59ec43d665790bd27ff14f66e08e62
sha512
4fc299e3cd9cdcc4c72e5251f6a2da2f896a7f5732d7dffcad38e1f623ff5b4175ef087e95cf261de40404ed55a02f675417083c7a944a1d3fc7c8a1aa929d95
ripemd-160
802febb68e6f4a7a86c19a71099f4499096dc47b
Diameter
41063818
Circumference
129005788.95715
Area
1.3243675596707E+15
Volume
3.6255725623614E+22
Surface area
5.2974702386827E+15
Circumference
129005788.95715
Perimeter
82127636
Area
421559287184281
Diagonal
29036504.16921
Surface area
2529355723105686
Volume
8.6554169225725E+21
Space diagonal
35562309.564381
Perimeter
61595727
Area
1.8254052595142E+14
Altitude
17781154.78219
Surface area
1.8254052595142E+14
Volume
1.020050666658E+21
Height
9678834.7230701