20651421 is an odd 8-digits composite number following 20651420
and preceding 20651422 . In scientific notation, it is written as 2.0651421 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 11761200 positive integers (up to 20651421) that are relatively prime to 20651421.
20651421 has 8 divisors, whose sum is 21707488
The reverse of 20651421 is 12415602
Previous prime number is 331
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million six hundred fifty-one thousand four hundred twenty-one
Scientific notation
2.0651421 × 10^7
Engineering notation
2.0651421 × 10^6
Prime Factorization
21 × 331 × 2971
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20651421
Product of the distinct prime numbers
The prime factorization of 20651421 is 21 × 331 × 2971.
Since it has a total of 3 prime factors.
7 , 2 , 24 , 64 , 528 , 28 , 1945 , 4247 , 63926 , 51505 , 912360 , 14472 , 5829391 , 6152675 , 74315802 , 95958774 , 313441778 , 286845944 , 101711651 , 4802945916
n×2
41302842
n×3
61954263
n×4
82605684
n×5
103257105
n÷2
10325710.5
n÷3
6883807
n÷3
5162855.25
n÷5
4130284.2
n2
426481189319241
n3
8.8074425892123E+21
n4
1.8188620484315E+29
n5
3.7562085903082E+36
2 √n
4544.3834565318
3 √n
274.35737993576
4 √n
67.412042370275
5 √n
29.039557078213
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
-20651420
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 20651421 can be divided by 8 positive divisors.
The sum of these divisors (counting 20651421) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110110001110110011101
3
Ternary
1102212012102110
4
Quaternary
1032301312131
5
Quinary
20241321141
6
Senary
2014344233
8
Octal
116616635
10
Decimal
20651421
12
Duodecimal
6abb079
16
Hexadecimal
13b1d9d
20
Vigesimal
6918b1
36
Base36
camql
md5
e667b9d6577a28d5aac9900a0eabe4aa
sha1
af4c073bee9851f1b53f9c6aa1b014ded7602bdf
sha256
c906bf5e25dce8f8ca1e6c8b1b5b73e677a0813be807f5187bdaf16d7a037403
sha512
da0aae6ec4a895cbe3e6ab767592814f31180141448362b61ddeaf3d1212509743ff4507a5b1ca1cfec1cc3f24a0a4920be5b2f734d5b200471d686c5f34da00
ripemd-160
ecf26642232f7c75ac741e7c8c7e6bf82122aaa8
Diameter
41302842
Circumference
129756704.99958
Area
1.3398301712596E+15
Volume
3.6892529246911E+22
Surface area
5.3593206850383E+15
Circumference
129756704.99958
Perimeter
82605684
Area
426481189319241
Diagonal
29205519.660477
Surface area
2558887135915446
Volume
8.8074425892123E+21
Space diagonal
35769310.420495
Perimeter
61954263
Area
1.8467177209333E+14
Altitude
17884655.210247
Surface area
1.8467177209333E+14
Volume
1.0379670632905E+21
Height
9735173.2201588