20388621 is an odd 8-digits composite number following 20388620
and preceding 20388622 . In scientific notation, it is written as 2.0388621 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 12356520 positive integers (up to 20388621) that are relatively prime to 20388621.
20388621 has 8 divisors, whose sum is 27409984
The reverse of 20388621 is 12688302
Previous prime number is 121
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million three hundred eighty-eight thousand six hundred twenty-one
Scientific notation
2.0388621 × 10^7
Engineering notation
2.0388621 × 10^6
Prime Factorization
3 × 121 × 56167
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20388621
Product of the distinct prime numbers
The prime factorization of 20388621 is 3 × 121 × 56167.
Since it has a total of 3 prime factors.
4 , 8 , 53 , 23 , 604 , 817 , 9049 , 3586 , 30032 , 28803 , 275176 , 489733 , 6321663 , 2418267 , 37262922 , 65794870 , 915628477 , 949771531 , 934517311 , 5077136842
n×2
40777242
n×3
61165863
n×4
81554484
n×5
101943105
n÷2
10194310.5
n÷3
6796207
n÷3
5097155.25
n÷5
4077724.2
n2
415695866281641
n3
8.4754654688831E+21
n4
1.7280305324364E+29
n5
3.5232159602275E+36
2 √n
4515.3760640726
3 √n
273.18862837609
4 √n
67.196548007116
5 √n
28.965269296555
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
-20388620
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 20388621 can be divided by 8 positive divisors.
The sum of these divisors (counting 20388621) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101110001101100001101
3
Ternary
1102100211221010
4
Quaternary
1031301230031
5
Quinary
20204413441
6
Senary
2004555433
8
Octal
115615415
10
Decimal
20388621
12
Duodecimal
69b2b79
16
Hexadecimal
1371b0d
20
Vigesimal
678bb1
36
Base36
c4zyl
md5
f0eda31c9b78c426a8b3d30151aa5e9c
sha1
03cb06bc87098658d808cef9951be351b3887de5
sha256
f8c4952fd78c1f6aff32bef56f2f51ee78a315b0211fe408cf06d9ca33c83751
sha512
63128a9f804ae64786a15d7f8d7c1a8cc533e32e49214ee61656f7d3e036f9138189c74661e6f3dd1b817302fef115b392ff3f3cb2103bd788ad43811c7d8f6f
ripemd-160
89cc9d5b7aad43d569baed5d3bf017888cab1529
Diameter
40777242
Circumference
128105483.90085
Area
1.305947079638E+15
Volume
3.5501946737063E+22
Surface area
5.2237883185522E+15
Circumference
128105483.90085
Perimeter
81554484
Area
415695866281641
Diagonal
28833864.336285
Surface area
2494175197689846
Volume
8.4754654688831E+21
Space diagonal
35314127.468266
Perimeter
61165863
Area
1.8000159022404E+14
Altitude
17657063.734133
Surface area
1.8000159022404E+14
Volume
9.9884318445994E+20
Height
9611288.112095