21361255 is an odd 8-digits composite number following 21361254
and preceding 21361256 . In scientific notation, it is written as 2.1361255 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 16499616 positive integers (up to 21361255) that are relatively prime to 21361255.
21361255 has 4 divisors, whose sum is 21508720
The reverse of 21361255 is 55216312
Previous prime number is 145
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million three hundred sixty-one thousand two hundred fifty-five
Scientific notation
2.1361255 × 10^7
Engineering notation
2.1361255 × 10^6
Prime Factorization
145 × 147319
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21361255
Product of the distinct prime numbers
The prime factorization of 21361255 is 145 × 147319.
Since it has a total of 2 prime factors.
6 , 6 , 28 , 67 , 632 , 87 , 6701 , 2359 , 16710 , 13494 , 629664 , 361916 , 9019956 , 8569678 , 48489802 , 14469802 , 276903634 , 595508010 , 9838451307 , 5757030216
n×2
42722510
n×3
64083765
n×4
85445020
n×5
106806275
n÷2
10680627.5
n÷3
7120418.3333333
n÷3
5340313.75
n÷5
4272251
n2
456303215175025
n3
9.7472093366736E+21
n4
2.0821262417907E+29
n5
4.4476829593082E+36
2 √n
4621.8237742259
3 √n
277.46545575463
4 √n
67.98399645671
5 √n
29.236498138445
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
-21361254
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 21361255 can be divided by 4 positive divisors.
The sum of these divisors (counting 21361255) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001011111001001100111
3
Ternary
1111012021010121
4
Quaternary
1101133021213
5
Quinary
20432030010
6
Senary
2041502411
8
Octal
121371147
10
Decimal
21361255
12
Duodecimal
71a1a07
16
Hexadecimal
145f267
20
Vigesimal
6da32f
36
Base36
cpug7
md5
d6e6312fe2ffa55b7b2c9bc8098541a9
sha1
eb067365b90c22bfce7d0ed6f00f0ba42208c983
sha256
9e525a69d57d269125a8b7fc4675565118fbfc34e08056ba99b5cc0fa2a74da3
sha512
617e11633cf5c4de9aa23ddbcc133231492633fb2e848b06b8ef7c5f514c967e41f177692177b7c871ae444fb42028ce93ddb0aa5dd03d694a379b04864ff4af
ripemd-160
0c8bfd1aec7c54681fb77b6d10f4b09d7b8b6159
Diameter
42722510
Circumference
134216723.55892
Area
1.4335188286033E+15
Volume
4.0829014993461E+22
Surface area
5.734075314413E+15
Circumference
134216723.55892
Perimeter
85445020
Area
456303215175025
Diagonal
30209376.53031
Surface area
2737819291050150
Volume
9.7472093366736E+21
Space diagonal
36998778.973435
Perimeter
64083765
Area
1.9758508808504E+14
Altitude
18499389.486717
Surface area
1.9758508808504E+14
Volume
1.1487196366011E+21
Height
10069792.17677