21397963 is an odd 8-digits composite number following 21397962
and preceding 21397964 . In scientific notation, it is written as 2.1397963 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 21387088 positive integers (up to 21397963) that are relatively prime to 21397963.
21397963 has 4 divisors, whose sum is 21408840
The reverse of 21397963 is 36979312
Previous prime number is 2579
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty-one million three hundred ninety-seven thousand nine hundred sixty-three
Scientific notation
2.1397963 × 10^7
Engineering notation
2.1397963 × 10^6
Prime Factorization
2579 × 8297
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21397963
Product of the distinct prime numbers
The prime factorization of 21397963 is 2579 × 8297.
Since it has a total of 2 prime factors.
9 , 4 , 14 , 20 , 903 , 867 , 4207 , 6938 , 89889 , 46087 , 51902 , 969987 , 3660754 , 2146836 , 39951391 , 85414526 , 732972013 , 401101653 , 9480051267 , 3247872337
n×2
42795926
n×3
64193889
n×4
85591852
n×5
106989815
n÷2
10698981.5
n÷3
7132654.3333333
n÷3
5349490.75
n÷5
4279592.6
n2
457872820549369
n3
9.797545672821E+21
n4
2.0964751979783E+29
n5
4.4860298716758E+36
2 √n
4625.7932292743
3 √n
277.62430056188
4 √n
68.013184231253
5 √n
29.246539462637
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
-21397962
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 21397963 can be divided by 4 positive divisors.
The sum of these divisors (counting 21397963) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001101000000111001011
3
Ternary
1111021010111011
4
Quaternary
1101220013023
5
Quinary
20434213323
6
Senary
2042344351
8
Octal
121500713
10
Decimal
21397963
12
Duodecimal
71bb0b7
16
Hexadecimal
14681cb
20
Vigesimal
6deei3
36
Base36
cqmrv
md5
91ef7476938a0535701e835a2a3ae732
sha1
bd81ad93f11b28129d70852181fb47496534b76e
sha256
15bf73d162690ad7a2cde0f8a12afa420eecf46c8c487f50664af036d4bec65b
sha512
f30a04fc67a5bb50f83e5cfc62c16e1fbebc22f21c2540b0572be9a65f3eca19056157cf6bc5150a07ebd5f47f37d0756ce5b62f7f1b645a60253a99cd754303
ripemd-160
f7dc8eef3145c25f6fdb29357761e68873b43242
Diameter
42795926
Circumference
134447366.72517
Area
1.4384498893163E+15
Volume
4.103986334526E+22
Surface area
5.7537995572653E+15
Circumference
134447366.72517
Perimeter
85591852
Area
457872820549369
Diagonal
30261289.481758
Surface area
2747236923296214
Volume
9.797545672821E+21
Space diagonal
37062359.094479
Perimeter
64193889
Area
1.9826474714909E+14
Altitude
18531179.547239
Surface area
1.9826474714909E+14
Volume
1.1546518307061E+21
Height
10087096.493919