21131382 is an even 8-digits composite number following 21131381
and preceding 21131383 . In scientific notation, it is written as 2.1131382 × 10^7.
The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors.
There are 6673032 positive integers (up to 21131382) that are relatively prime to 21131382.
21131382 has 16 divisors, whose sum is 44487360
The reverse of 21131382 is 28313112
Previous prime number is 19
Is Prime? no
Number parity even
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million one hundred thirty-one thousand three hundred eighty-two
Scientific notation
2.1131382 × 10^7
Engineering notation
2.1131382 × 10^6
Prime Factorization
2 × 3 × 19 × 185363
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21131382
Product of the distinct prime numbers
The prime factorization of 21131382 is 2 × 3 × 19 × 185363.
Since it has a total of 4 prime factors.
2 , 3 , 56 , 28 , 75 , 713 , 6612 , 6135 , 83914 , 87738 , 689325 , 411330 , 4598012 , 1838241 , 67794544 , 94237524 , 962292351 , 86473824 , 3512399093 , 9658419440
n×2
42262764
n×3
63394146
n×4
84525528
n×5
105656910
n÷2
10565691
n÷3
7043794
n÷3
5282845.5
n÷5
4226276.4
n2
446535305229924
n3
9.4359081113001E+21
n4
1.9939377881678E+29
n5
4.2134661086009E+36
2 √n
4596.8882953581
3 √n
276.46657586202
4 √n
67.800356159522
5 √n
29.173301488111
1 , 2 , 3 , 6 , 19 , 38 , 57 , 114 , 185363 , 370726 , 556089 , 1112178 , 3521897 , 7043794 , 10565691 , 21131382
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21131381
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21131382 can be divided by 16 positive divisors.
The sum of these divisors (counting 21131382) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000100111000001110110
3
Ternary
1110202120210210
4
Quaternary
1100213001312
5
Quinary
20402201012
6
Senary
2032530250
8
Octal
120470166
10
Decimal
21131382
12
Duodecimal
70b0986
16
Hexadecimal
1427076
20
Vigesimal
6c1892
36
Base36
ckx2u
md5
7d0b07a306586ca5d2d3db63613c73e6
sha1
3ec705989501d93170582728f8b9ba836444050e
sha256
c6c34f8afe497748e6f6183627b7e045bb96ae900571b6b476114a56ad4e3c4a
sha512
4c2f3909d5c88454c6e767b622cb264cdc9b996a98a6af044e79d1f863328e0856d222a52f769c268d5b4071d10af9019d0ad5a80af6d08bd3709d23b7dcd77e
ripemd-160
bd9c02550cda14618ee2280d4be1e680388025b2
Diameter
42262764
Circumference
132772388.9028
Area
1.4028320344788E+15
Volume
3.9525039469878E+22
Surface area
5.6113281379152E+15
Circumference
132772388.9028
Perimeter
84525528
Area
446535305229924
Diagonal
29884287.016087
Surface area
2679211831379544
Volume
9.4359081113001E+21
Space diagonal
36600627.258146
Perimeter
63394146
Area
1.9335545900788E+14
Altitude
18300313.629073
Surface area
1.9335545900788E+14
Volume
1.1120324353589E+21
Height
9961429.0053622