20404209 is an odd 8-digits composite number following 20404208
and preceding 20404210 . In scientific notation, it is written as 2.0404209 × 10^7.
The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors.
There are 11579520 positive integers (up to 20404209) that are relatively prime to 20404209.
20404209 has 16 divisors, whose sum is 31305600
The reverse of 20404209 is 90240402
Previous prime number is 149
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million four hundred four thousand two hundred nine
Scientific notation
2.0404209 × 10^7
Engineering notation
2.0404209 × 10^6
Prime Factorization
7 × 3 × 149 × 6521
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20404209
Product of the distinct prime numbers
The prime factorization of 20404209 is 7 × 3 × 149 × 6521.
Since it has a total of 4 prime factors.
3 , 9 , 23 , 27 , 366 , 281 , 6738 , 7055 , 77038 , 44643 , 273291 , 481267 , 2766178 , 8591666 , 12385491 , 24827373 , 286979234 , 194917056 , 9548835384 , 539977285
n×2
40808418
n×3
61212627
n×4
81616836
n×5
102021045
n÷2
10202104.5
n÷3
6801403
n÷3
5101052.25
n÷5
4080841.8
n2
416331744915681
n3
8.4949199365942E+21
n4
1.7333212182454E+29
n5
3.5367048401213E+36
2 √n
4517.1018363548
3 √n
273.25823222585
4 √n
67.20938800759
5 √n
28.969696987875
1 , 3 , 7 , 21 , 149 , 447 , 1043 , 3129 , 6521 , 19563 , 45647 , 136941 , 971629 , 2914887 , 6801403 , 20404209
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20404208
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20404209 can be divided by 16 positive divisors.
The sum of these divisors (counting 20404209) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101110101011111110001
3
Ternary
1102101122022110
4
Quaternary
1031311133301
5
Quinary
20210413314
6
Senary
2005155533
8
Octal
115653761
10
Decimal
20404209
12
Duodecimal
69bbba9
16
Hexadecimal
13757f1
20
Vigesimal
67aaa9
36
Base36
c5bzl
md5
552f340790cac77af06df7c6a861a245
sha1
5fe32b9068fe2851064a8dea4285488875807a46
sha256
983c8073ef36bec81dfb44bcf6b7927d765e097d00813fac5621c7bfcf115ba7
sha512
2edf770fff1e864a8cedc861dc5d9fab25c493f092c59a95480176d849580a7f851275c6a35ad0982b0a01ef3eb55426dfb8cad55f046bf3c66893fa0f2687ea
ripemd-160
33ed945a8d7afe18b96c14f7b28881bea91a1867
Diameter
40808418
Circumference
128203426.19342
Area
1.3079447512833E+15
Volume
3.5583437420851E+22
Surface area
5.2317790051333E+15
Circumference
128203426.19342
Perimeter
81616836
Area
416331744915681
Diagonal
28855909.097295
Surface area
2497990469494086
Volume
8.4949199365942E+21
Space diagonal
35341126.676254
Perimeter
61212627
Area
1.8027693374944E+14
Altitude
17670563.338127
Surface area
1.8027693374944E+14
Volume
1.0011359154671E+21
Height
9618636.3657651