21132813 is an odd 8-digits composite number following 21132812
and preceding 21132814 . In scientific notation, it is written as 2.1132813 × 10^7.
The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors.
There are 12932160 positive integers (up to 21132813) that are relatively prime to 21132813.
21132813 has 16 divisors, whose sum is 30514176
The reverse of 21132813 is 31823112
Previous prime number is 191
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million one hundred thirty-two thousand eight hundred thirteen
Scientific notation
2.1132813 × 10^7
Engineering notation
2.1132813 × 10^6
Prime Factorization
3 × 13 × 191 × 2837
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21132813
Product of the distinct prime numbers
The prime factorization of 21132813 is 3 × 13 × 191 × 2837.
Since it has a total of 4 prime factors.
8 , 4 , 78 , 40 , 584 , 301 , 4847 , 23 , 10710 , 48508 , 337411 , 572097 , 3520791 , 1658992 , 44757972 , 29720076 , 234598377 , 678309103 , 4833322347 , 7608193452
n×2
42265626
n×3
63398439
n×4
84531252
n×5
105664065
n÷2
10566406.5
n÷3
7044271
n÷3
5283203.25
n÷5
4226562.6
n2
446595785292969
n3
9.4378252171845E+21
n4
1.9944779544144E+29
n5
4.2148929643263E+36
2 √n
4597.0439414911
3 √n
276.47281641837
4 √n
67.801503976616
5 √n
29.173696595858
1 , 3 , 13 , 39 , 191 , 573 , 2483 , 2837 , 7449 , 8511 , 36881 , 110643 , 541867 , 1625601 , 7044271 , 21132813
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
-21132812
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 21132813 can be divided by 16 positive divisors.
The sum of these divisors (counting 21132813) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000100111011000001101
3
Ternary
1110202122202210
4
Quaternary
1100213120031
5
Quinary
20402222223
6
Senary
2032541033
8
Octal
120473015
10
Decimal
21132813
12
Duodecimal
70b1779
16
Hexadecimal
142760d
20
Vigesimal
6c1c0d
36
Base36
cky6l
md5
d43d93021f949c8d7a24dc012a541f83
sha1
4cb6efb89a8ba2faec76e373b4d475c235c21d47
sha256
299a722964f95f9c3f7f10eef6c86bd7a0fc55f32b5bb7afe3dcb95b9ddec228
sha512
ec79743e11f7740ceed8068d38e48e35fcbfec4dba2cda4f68247ea9b5109c04a0c2b073275b513d04a1278ee27632691859aa7c8462ccf8bcbb7bc2b1417ff0
ripemd-160
1c7cdba35d199c7056fdd4bccb6d7f11a13a5cb4
Diameter
42265626
Circumference
132781380.14097
Area
1.4030220382006E+15
Volume
3.9533069824228E+22
Surface area
5.6120881528022E+15
Circumference
132781380.14097
Perimeter
84531252
Area
446595785292969
Diagonal
29886310.755694
Surface area
2679574711757814
Volume
9.4378252171845E+21
Space diagonal
36603105.822852
Perimeter
63398439
Area
1.9338164764339E+14
Altitude
18301552.911426
Surface area
1.9338164764339E+14
Volume
1.1122583684541E+21
Height
9962103.5852315