21556545 is an odd 8-digits composite number following 21556544
and preceding 21556546 . In scientific notation, it is written as 2.1556545 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 10632384 positive integers (up to 21556545) that are relatively prime to 21556545.
21556545 has 16 divisors, whose sum is 26949120
The reverse of 21556545 is 54565512
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million five hundred fifty-six thousand five hundred forty-five
Scientific notation
2.1556545 × 10^7
Engineering notation
2.1556545 × 10^6
Prime Factorization
5 × 57 × 43 × 1759
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21556545
Product of the distinct prime numbers
The prime factorization of 21556545 is 5 × 57 × 43 × 1759.
Since it has a total of 4 prime factors.
3 , 10 , 47 , 18 , 398 , 844 , 3564 , 7639 , 20523 , 61769 , 132614 , 968698 , 6471625 , 7183451 , 18956360 , 1947053 , 153682029 , 855015490 , 1518530442 , 5593543925
n×2
43113090
n×3
64669635
n×4
86226180
n×5
107782725
n÷2
10778272.5
n÷3
7185515
n÷3
5389136.25
n÷5
4311309
n2
464684632337025
n3
1.0016995187782E+22
n4
2.159318075302E+29
n5
4.654743725956E+36
2 √n
4642.9026481286
3 √n
278.3084451513
4 √n
68.138848303509
5 √n
29.2897612084
1 , 5 , 43 , 57 , 215 , 285 , 1759 , 2451 , 8795 , 12255 , 75637 , 100263 , 378185 , 501315 , 4311309 , 21556545
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
-21556544
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 21556545 can be divided by 16 positive divisors.
The sum of these divisors (counting 21556545) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010001110110101000001
3
Ternary
1111120012000120
4
Quaternary
1102032311001
5
Quinary
21004302140
6
Senary
2050010453
8
Octal
122166501
10
Decimal
21556545
12
Duodecimal
7276a29
16
Hexadecimal
148ed41
20
Vigesimal
6eeb75
36
Base36
cu14x
md5
e44da7b26f5facbebfd712d30d4be03b
sha1
136e8a69e55ec2bffda4772c9e55b480ce9fea15
sha256
6c756411d30ad015e82d751e72cadda403a5c6e853f1fcc55342dcf431a14324
sha512
189fd36af759222b099f926527abc399ecf2ecfeef053d1dcb383980c49607f036ea370ad2d9e0444849703d6c640170baf382765093a3d5a5c290fa26b4ad65
ripemd-160
6766b8006f009551b7af929219290574b45eeaf4
Diameter
43113090
Circumference
135443766.81756
Area
1.4598498271861E+15
Volume
4.1959091323972E+22
Surface area
5.8393993087443E+15
Circumference
135443766.81756
Perimeter
86226180
Area
464684632337025
Diagonal
30485558.296906
Surface area
2788107794022150
Volume
1.0016995187782E+22
Space diagonal
37337031.175645
Perimeter
64669635
Area
2.0121434817605E+14
Altitude
18668515.587822
Surface area
2.0121434817605E+14
Volume
1.1805142040656E+21
Height
10161852.765635