21936481 is an odd 8-digits composite number following 21936480
and preceding 21936482 . In scientific notation, it is written as 2.1936481 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 18802692 positive integers (up to 21936481) that are relatively prime to 21936481.
21936481 has 4 divisors, whose sum is 25070272
The reverse of 21936481 is 18463912
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million nine hundred thirty-six thousand four hundred eighty-one
Scientific notation
2.1936481 × 10^7
Engineering notation
2.1936481 × 10^6
Prime Factorization
7 × 3133783
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21936481
Product of the distinct prime numbers
The prime factorization of 21936481 is 7 × 3133783.
Since it has a total of 2 prime factors.
10 , 10 , 13 , 21 , 78 , 775 , 8798 , 7840 , 35895 , 45083 , 633053 , 209791 , 2965454 , 5776506 , 4839902 , 11659163 , 12740962 , 127857996 , 8699292801 , 2210053375
n×2
43872962
n×3
65809443
n×4
87745924
n×5
109682405
n÷2
10968240.5
n÷3
7312160.3333333
n÷3
5484120.25
n÷5
4387296.2
n2
481209198663361
n3
1.0556036443504E+22
n4
2.3156229287823E+29
n5
5.0796618380398E+36
2 √n
4683.6397171431
3 √n
279.93400230231
4 √n
68.437122361647
5 √n
29.392287840823
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
-21936480
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 21936481 can be divided by 4 positive divisors.
The sum of these divisors (counting 21936481) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010011101011100101100001
3
Ternary
1112021111012021
4
Quaternary
1103223211201
5
Quinary
21103431411
6
Senary
2102101441
8
Octal
123534541
10
Decimal
21936481
12
Duodecimal
741a881
16
Hexadecimal
14eb961
20
Vigesimal
6h2141
36
Base36
d26ap
md5
5800225ebee4a9844ffd655bc9d90ff4
sha1
3b12d1e41b8cdf4fcd8234589c96fb4d1667e317
sha256
c07866c7fb8689ace2f28bc74685ab426f6afa909d9c83b3e6919824b0d9b72d
sha512
9fea0b0260d80d1f8e53ae46688fc09a12044f69d0b37ce9206f299070f9ddd39324cd98e87ab660ea09f1942cb99b56e6cdfaa51e4195fff81af34b6a866828
ripemd-160
eda36b47c7d31d2c49edf3885925e40f7c007f7e
Diameter
43872962
Circumference
137830975.11042
Area
1.5117632833606E+15
Volume
4.4217022055918E+22
Surface area
6.0470531334426E+15
Circumference
137830975.11042
Perimeter
87745924
Area
481209198663361
Diagonal
31022868.94094
Surface area
2887255191980166
Volume
1.0556036443504E+22
Space diagonal
37995099.631269
Perimeter
65809443
Area
2.0836969528861E+14
Altitude
18997549.815635
Surface area
2.0836969528861E+14
Volume
1.2440408252757E+21
Height
10340956.313647