20748909 is an odd 8-digits composite number following 20748908
and preceding 20748910 . In scientific notation, it is written as 2.0748909 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 13832604 positive integers (up to 20748909) that are relatively prime to 20748909.
20748909 has 4 divisors, whose sum is 27665216
The reverse of 20748909 is 90984702
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million seven hundred forty-eight thousand nine hundred nine
Scientific notation
2.0748909 × 10^7
Engineering notation
2.0748909 × 10^6
Prime Factorization
3 × 6916303
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20748909
Product of the distinct prime numbers
The prime factorization of 20748909 is 3 × 6916303.
Since it has a total of 2 prime factors.
8 , 8 , 59 , 95 , 509 , 916 , 8316 , 5684 , 41910 , 17785 , 19988 , 898834 , 2050009 , 4650629 , 95341931 , 67940296 , 892934170 , 659887063 , 7603193529 , 4008879767
n×2
41497818
n×3
62246727
n×4
82995636
n×5
103744545
n÷2
10374454.5
n÷3
6916303
n÷3
5187227.25
n÷5
4149781.8
n2
430517224690281
n3
8.9327627180312E+21
n4
1.8534508075502E+29
n5
3.8457082141836E+36
2 √n
4555.0970351904
3 √n
274.78841686545
4 √n
67.491458979565
5 √n
29.066922534168
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
-20748908
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 20748909 can be divided by 4 positive divisors.
The sum of these divisors (counting 20748909) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111001001101001101101
3
Ternary
1110001011011010
4
Quaternary
1033021221231
5
Quinary
20302431114
6
Senary
2020415433
8
Octal
117115155
10
Decimal
20748909
12
Duodecimal
6b47579
16
Hexadecimal
13c9a6d
20
Vigesimal
69dc59
36
Base36
ccpyl
md5
2d49de5ce23fbd55327695b5802a44e8
sha1
77710e81c79352b9a58a60288c9fa7738bf1df0c
sha256
559459de97ccbae2f8ccd2f3812b81e1cc1e58870b723cd05f997a435778bc6b
sha512
3f34da17ded584b28f077ecd5080a4da70955abf0f56deeec4379f7b1915f6e41f29cccac6f58df6184ea222a787f9dc2a1ce7e51bc52bb0be3ee603cd1ef482
ripemd-160
df37e4d4d1bf37b9cc7d3004500be84f3be05d3b
Diameter
41497818
Circumference
130369240.16881
Area
1.3525097503309E+15
Volume
3.741746897497E+22
Surface area
5.4100390013234E+15
Circumference
130369240.16881
Perimeter
82995636
Area
430517224690281
Diagonal
29343388.512245
Surface area
2583103348141686
Volume
8.9327627180312E+21
Space diagonal
35938164.589623
Perimeter
62246727
Area
1.8641942667428E+14
Altitude
17969082.294812
Surface area
1.8641942667428E+14
Volume
1.0527361821084E+21
Height
9781129.5040817