21361239 is an odd 8-digits composite number following 21361238
and preceding 21361240 . In scientific notation, it is written as 2.1361239 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors.
There are 13907376 positive integers (up to 21361239) that are relatively prime to 21361239.
21361239 has 12 divisors, whose sum is 24560536
The reverse of 21361239 is 93216312
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million three hundred sixty-one thousand two hundred thirty-nine
Scientific notation
2.1361239 × 10^7
Engineering notation
2.1361239 × 10^6
Prime Factorization
9 × 9 × 43 × 6133
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2373471
Product of the distinct prime numbers
The prime factorization of 21361239 is 9 × 9 × 43 × 6133.
Since it has a total of 4 prime factors.
5 , 7 , 37 , 34 , 185 , 150 , 4690 , 9958 , 10147 , 99525 , 113638 , 569638 , 8960217 , 9225375 , 7147471 , 7565431 , 730042292 , 520424496 , 7410919311 , 1113557743
n×2
42722478
n×3
64083717
n×4
85444956
n×5
106806195
n÷2
10680619.5
n÷3
7120413
n÷3
5340309.75
n÷5
4272247.8
n2
456302531615121
n3
9.7471874341357E+21
n4
2.0821200035837E+29
n5
4.4476663023232E+36
2 √n
4621.8220433072
3 √n
277.46538647892
4 √n
67.983983726369
5 √n
29.236493758702
1 , 9 , 43 , 81 , 387 , 3483 , 6133 , 55197 , 263719 , 496773 , 2373471 , 21361239
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21361238
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21361239 can be divided by 12 positive divisors.
The sum of these divisors (counting 21361239) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010001011111001001010111
3
Ternary
1111012021010000
4
Quaternary
1101133021113
5
Quinary
20432024424
6
Senary
2041502343
8
Octal
121371127
10
Decimal
21361239
12
Duodecimal
71a19b3
16
Hexadecimal
145f257
20
Vigesimal
6da31j
36
Base36
cpufr
md5
1f18b4a14f5465df15026b13968562f8
sha1
78227b64d0a64bb485d63666ddc5759efc305ea1
sha256
701e015f3fd2a82cb4c3b72477a82d3dfe345b1df3a1fc4514c6a65495150d51
sha512
7412d5baec160fada722c358aa65077ef1306a1be53c2fa422fe77f3585f1a3ffcda9e1a06a2fea255cf92dfc3e8e3719d2f722369ede229c49067f11525222a
ripemd-160
74166e2c9b34fb17c84e98b272077d6de4f7a0c6
Diameter
42722478
Circumference
134216623.02795
Area
1.4335166811365E+15
Volume
4.0828923248324E+22
Surface area
5.734066724546E+15
Circumference
134216623.02795
Perimeter
85444956
Area
456302531615121
Diagonal
30209353.902893
Surface area
2737815189690726
Volume
9.7471874341357E+21
Space diagonal
36998751.260622
Perimeter
64083717
Area
1.9758479209492E+14
Altitude
18499375.630311
Surface area
1.9758479209492E+14
Volume
1.1487170553623E+21
Height
10069784.634298