21271421 is an odd 8-digits composite number following 21271420
and preceding 21271422 . In scientific notation, it is written as 2.1271421 × 10^7.
The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors.
There are 21052032 positive integers (up to 21271421) that are relatively prime to 21271421.
21271421 has 4 divisors, whose sum is 21490812
The reverse of 21271421 is 12417212
Previous prime number is 97
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty-one million two hundred seventy-one thousand four hundred twenty-one
Scientific notation
2.1271421 × 10^7
Engineering notation
2.1271421 × 10^6
Prime Factorization
97 × 219293
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21271421
Product of the distinct prime numbers
The prime factorization of 21271421 is 97 × 219293.
Since it has a total of 2 prime factors.
2 , 1 , 51 , 89 , 985 , 209 , 2412 , 1591 , 13815 , 13367 , 336755 , 474425 , 7054454 , 9611367 , 84659138 , 54639344 , 329240372 , 372331670 , 9377230311 , 6892574369
n×2
42542842
n×3
63814263
n×4
85085684
n×5
106357105
n÷2
10635710.5
n÷3
7090473.6666667
n÷3
5317855.25
n÷5
4254284.2
n2
452473351359241
n3
9.6247511480433E+21
n4
2.0473213369026E+29
n5
4.3549434079539E+36
2 √n
4612.0950770772
3 √n
277.07595218559
4 √n
67.912407386848
5 √n
29.211866056662
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
-21271420
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 21271421 can be divided by 4 positive divisors.
The sum of these divisors (counting 21271421) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001001001001101111101
3
Ternary
1111000200220102
4
Quaternary
1101021031331
5
Quinary
20421141141
6
Senary
2035530445
8
Octal
121111575
10
Decimal
21271421
12
Duodecimal
7159a25
16
Hexadecimal
144937d
20
Vigesimal
6ciib1
36
Base36
cnx4t
md5
d0724ba7bf4ca5a4115195fb5e85772e
sha1
c4cfe05c3ac8bc41cf555f0a21dae46e97042831
sha256
9de7ed67b3387cd560d7650ca4cf5b24608e9592179931192e7b7134318969af
sha512
e5bc1ec4045f3a49830a96e6c144cda60a11c8d0c874522d8083b58ad436e68cf567d3e5853cdbfc7b6fb80a2cc79c8bdc850856c98669c2158f104167f6d057
ripemd-160
5c5d9fce516681c07dcba87442aba4358e32e9ca
Diameter
42542842
Circumference
133652279.89003
Area
1.4214869565753E+15
Volume
4.031606333243E+22
Surface area
5.6859478263014E+15
Circumference
133652279.89003
Perimeter
85085684
Area
452473351359241
Diagonal
30082332.069148
Surface area
2714840108155446
Volume
9.6247511480433E+21
Space diagonal
36843181.921188
Perimeter
63814263
Area
1.9592670840629E+14
Altitude
18421590.960594
Surface area
1.9592670840629E+14
Volume
1.1342878006691E+21
Height
10027444.023049