21242794 is an even 8-digits composite number following 21242793
and preceding 21242795 . In scientific notation, it is written as 2.1242794 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 10621396 positive integers (up to 21242794) that are relatively prime to 21242794.
21242794 has 4 divisors, whose sum is 31864194
The reverse of 21242794 is 49724212
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million two hundred forty-two thousand seven hundred ninety-four
Scientific notation
2.1242794 × 10^7
Engineering notation
2.1242794 × 10^6
Prime Factorization
2 × 10621397
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21242794
Product of the distinct prime numbers
The prime factorization of 21242794 is 2 × 10621397.
Since it has a total of 2 prime factors.
8 , 6 , 37 , 88 , 585 , 193 , 9168 , 806 , 17906 , 3584 , 456658 , 793030 , 468362 , 6538107 , 88376379 , 77770713 , 143060559 , 573295480 , 8083444446 , 1986689677
n×2
42485588
n×3
63728382
n×4
84971176
n×5
106213970
n÷2
10621397
n÷3
7080931.3333333
n÷3
5310698.5
n÷5
4248558.8
n2
451256296926436
n3
9.5859445568111E+21
n4
2.0363224551576E+29
n5
4.3257178432487E+36
2 √n
4608.9905619344
3 √n
276.95160045303
4 √n
67.889546779562
5 √n
29.203999176294
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
-21242793
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 21242794 can be divided by 4 positive divisors.
The sum of these divisors (counting 21242794) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001000010001110101010
3
Ternary
1110222020122011
4
Quaternary
1101002032222
5
Quinary
20414232134
6
Senary
2035150134
8
Octal
121021652
10
Decimal
21242794
12
Duodecimal
714534a
16
Hexadecimal
14423aa
20
Vigesimal
6cf6je
36
Base36
cnb1m
md5
0c9c6142bb37bc5151da8c79847d3437
sha1
0954944876d99f6c7a2e7c1ae2f65e2b9ad8363d
sha256
423ed0dff7fc590e01dc56247be6ff219f75e2c67f4536fe31dcbb5a6c9e46ae
sha512
3b811389b83f11322e53c144dd8d74450b03a3d355e988c7209b2ebf6fa4647ca953c3eaa94e8179e0c8db91034e735eaf910e91f46cb532770294b3812a3311
ripemd-160
12ca02b7f9eddcd3bbbf3060265f355f9035b945
Diameter
42485588
Circumference
133472411.14424
Area
1.4176634673102E+15
Volume
4.0153510663196E+22
Surface area
5.6706538692409E+15
Circumference
133472411.14424
Perimeter
84971176
Area
451256296926436
Diagonal
30041847.377498
Surface area
2707537781558616
Volume
9.5859445568111E+21
Space diagonal
36793598.502719
Perimeter
63728382
Area
1.9539970837799E+14
Altitude
18396799.25136
Surface area
1.9539970837799E+14
Volume
1.1297144000332E+21
Height
10013949.125833