21556481 is an odd 8-digits prime number following 21556480
and preceding 21556482 . In scientific notation, it is written as 2.1556481 × 10^7.
The sum of its digits is 32. It has a total of 1 prime factors and 2 positive divisors.
There are 21556480 positive integers (up to 21556481) that are relatively prime to 21556481.
21556481 has 2 divisors, whose sum is 21556482
The reverse of 21556481 is 18465512
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million five hundred fifty-six thousand four hundred eighty-one
Scientific notation
2.1556481 × 10^7
Engineering notation
2.1556481 × 10^6
Prime Factorization
21556481
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21556481
Product of the distinct prime numbers
The prime factorization of 21556481 is 21556481.
Since it has a total of 1 prime factors.
7 , 3 , 97 , 40 , 472 , 96 , 7064 , 1570 , 37102 , 90099 , 570229 , 103055 , 2892800 , 5237214 , 24217588 , 11720619 , 445751665 , 380046848 , 7987091677 , 2853691378
n×2
43112962
n×3
64669443
n×4
86225924
n×5
107782405
n÷2
10778240.5
n÷3
7185493.6666667
n÷3
5389120.25
n÷5
4311296.2
n2
464681873103361
n3
1.0016905968597E+22
n4
2.1592924319085E+29
n5
4.6546746281879E+36
2 √n
4642.8957558834
3 √n
278.30816972439
4 √n
68.138797728485
5 √n
29.289743816494
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21556482
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10778241
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4642.8958635748
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999072205
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21556481 can be divided by 2 positive divisors.
The sum of these divisors (counting 21556481) is 21556482, the average is 10778241.
Base
System
Value
2
Binary
1010010001110110100000001
3
Ternary
1111120011221012
4
Quaternary
1102032310001
5
Quinary
21004301411
6
Senary
2050010305
8
Octal
122166401
10
Decimal
21556481
12
Duodecimal
7276995
16
Hexadecimal
148ed01
20
Vigesimal
6eeb41
36
Base36
cu135
md5
731dad102cf0c9b9dc95e1eda08a18a4
sha1
3c54ff6cbf22c0a83572eb90c7bf14947a05579f
sha256
897f0c12eb720598eff31ea25fa45dc298a8cfa08a2351bb869f3a64863c973e
sha512
e454794797c52dd7019f12a89a85b5591a8ec715a6071e654e46978bf523d8a0010af72bf5329841007a52e2df9bdac8778cf8d655eadac2a98ab745bc7d63c8
ripemd-160
8260ec150aaa34c8d04943a728cfa1cb3c56def3
Diameter
43112962
Circumference
135443364.6937
Area
1.4598411587979E+15
Volume
4.1958717603526E+22
Surface area
5.8393646351915E+15
Circumference
135443364.6937
Perimeter
86225924
Area
464681873103361
Diagonal
30485467.787238
Surface area
2788091238620166
Volume
1.0016905968597E+22
Space diagonal
37336920.324393
Perimeter
64669443
Area
2.0121315339282E+14
Altitude
18668460.162197
Surface area
2.0121315339282E+14
Volume
1.1805036894838E+21
Height
10161822.595746