21302561 is an odd 8-digits composite number following 21302560
and preceding 21302562 . In scientific notation, it is written as 2.1302561 × 10^7.
The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors.
There are 18259332 positive integers (up to 21302561) that are relatively prime to 21302561.
21302561 has 4 divisors, whose sum is 24345792
The reverse of 21302561 is 16520312
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty-one million three hundred two thousand five hundred sixty-one
Scientific notation
2.1302561 × 10^7
Engineering notation
2.1302561 × 10^6
Prime Factorization
7 × 3043223
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21302561
Product of the distinct prime numbers
The prime factorization of 21302561 is 7 × 3043223.
Since it has a total of 2 prime factors.
6 , 2 , 77 , 10 , 794 , 114 , 7432 , 454 , 48979 , 93220 , 964493 , 493722 , 3363777 , 7283859 , 59771240 , 37691075 , 821972348 , 691644775 , 5135171035 , 8016042591
n×2
42605122
n×3
63907683
n×4
85210244
n×5
106512805
n÷2
10651280.5
n÷3
7100853.6666667
n÷3
5325640.25
n÷5
4260512.2
n2
453799105158721
n3
9.6670831193891E+21
n4
2.0593362784286E+29
n5
4.3869136690737E+36
2 √n
4615.4697485738
3 √n
277.21109341915
4 √n
67.937248609094
5 √n
29.220413913471
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
-21302560
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 21302561 can be divided by 4 positive divisors.
The sum of these divisors (counting 21302561) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001010000110100100001
3
Ternary
1111002021121202
4
Quaternary
1101100310201
5
Quinary
20423140221
6
Senary
2040330545
8
Octal
121206441
10
Decimal
21302561
12
Duodecimal
7173a55
16
Hexadecimal
1450d21
20
Vigesimal
6d2g81
36
Base36
col5t
md5
93754714bc262a5366d37c6efeb3a8e3
sha1
d934a58e96eb3219f9692b9bb7238c744d17f7ca
sha256
ac6562f519f6a9cb8782423381b500d9e36b28bcb9e61ce1b3ac2ce8004dd054
sha512
72e2b715847fcaf9822412aafae23913d136d34c9f05144ac84d27a98e31aa09cf4892dbf6ae737722cfff9e667f441d5e63159258e3f2d1b8c62b9b0ca89581
ripemd-160
149e0efe2bb5ee6054fee75e8453dba7ddd31122
Diameter
42605122
Circumference
133847938.2805
Area
1.4256519349723E+15
Volume
4.0493383079353E+22
Surface area
5.702607739889E+15
Circumference
133847938.2805
Perimeter
85210244
Area
453799105158721
Diagonal
30126370.67948
Surface area
2722794630952326
Volume
9.6670831193891E+21
Space diagonal
36897117.983335
Perimeter
63907683
Area
1.9650077664105E+14
Altitude
18448558.991668
Surface area
1.9650077664105E+14
Volume
1.1392766713357E+21
Height
10042123.559827