20215421 is an odd 8-digits composite number following 20215420
and preceding 20215422 . In scientific notation, it is written as 2.0215421 × 10^7.
The sum of its digits is 17. It has a total of 2 prime factors and 4 positive divisors.
There are 20143200 positive integers (up to 20215421) that are relatively prime to 20215421.
20215421 has 4 divisors, whose sum is 20287644
The reverse of 20215421 is 12451202
Previous prime number is 281
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty million two hundred fifteen thousand four hundred twenty-one
Scientific notation
2.0215421 × 10^7
Engineering notation
2.0215421 × 10^6
Prime Factorization
281 × 71941
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20215421
Product of the distinct prime numbers
The prime factorization of 20215421 is 281 × 71941.
Since it has a total of 2 prime factors.
5 , 10 , 17 , 99 , 526 , 353 , 8374 , 332 , 29183 , 6051 , 701909 , 355192 , 5212798 , 9824142 , 45775580 , 30550558 , 149652075 , 271593733 , 8091114466 , 4847469627
n×2
40430842
n×3
60646263
n×4
80861684
n×5
101077105
n÷2
10107710.5
n÷3
6738473.6666667
n÷3
5053855.25
n÷5
4043084.2
n2
408663246207241
n3
8.261299569306E+21
n4
1.6700564880064E+29
n5
3.3760894998831E+36
2 √n
4496.156247285
3 √n
272.41285432659
4 √n
67.053383563285
5 √n
28.915889606262
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
-20215420
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 20215421 can be divided by 4 positive divisors.
The sum of these divisors (counting 20215421) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000111011001111101
3
Ternary
1102001001100022
4
Quaternary
1031013121331
5
Quinary
20133343141
6
Senary
2001141525
8
Octal
115073175
10
Decimal
20215421
12
Duodecimal
692a8a5
16
Hexadecimal
134767d
20
Vigesimal
666ib1
36
Base36
c1abh
md5
eb0430af4021f15db38d6e02d588fd03
sha1
77d10f8d20a9c972346e7dd18caf4e173401dfe6
sha256
a50905b826ba7ce413141c53926c3b7ce1c89d42b27fd79dfa091e4dfcaa506b
sha512
8c640794b98b429f9f829bacfa96501cde0e6c748d61aa06d3d391e5b0255645c3c64582a4857a406df04c8517ff96f7b698907b7141991892a764c18ff50a89
ripemd-160
75db0a966703d7becf009183376fd0280848f682
Diameter
40430842
Circumference
127017236.20565
Area
1.2838534520768E+15
Volume
3.4604850714715E+22
Surface area
5.1354138083073E+15
Circumference
127017236.20565
Perimeter
80861684
Area
408663246207241
Diagonal
28588922.547282
Surface area
2451979477243446
Volume
8.261299569306E+21
Space diagonal
35014136.268395
Perimeter
60646263
Area
1.7695637640424E+14
Altitude
17507068.134197
Surface area
1.7695637640424E+14
Volume
9.7360349114497E+20
Height
9529640.849094