21147065 is an odd 8-digits composite number following 21147064
and preceding 21147066 . In scientific notation, it is written as 2.1147065 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 15922432 positive integers (up to 21147065) that are relatively prime to 21147065.
21147065 has 4 divisors, whose sum is 21395940
The reverse of 21147065 is 56074112
Previous prime number is 85
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million one hundred forty-seven thousand sixty-five
Scientific notation
2.1147065 × 10^7
Engineering notation
2.1147065 × 10^6
Prime Factorization
85 × 248789
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21147065
Product of the distinct prime numbers
The prime factorization of 21147065 is 85 × 248789.
Since it has a total of 2 prime factors.
2 , 5 , 9 , 84 , 600 , 213 , 2980 , 7 , 7748 , 42687 , 309251 , 883713 , 5417687 , 5008307 , 99519384 , 90493857 , 652723772 , 840724419 , 2272205977 , 5763386587
n×2
42294130
n×3
63441195
n×4
84588260
n×5
105735325
n÷2
10573532.5
n÷3
7049021.6666667
n÷3
5286766.25
n÷5
4229413
n2
447198358114225
n3
9.4569327469348E+21
n4
1.9998637150006E+29
n5
4.2291247972259E+36
2 √n
4598.5938068066
3 √n
276.53495367591
4 √n
67.812932445121
5 √n
29.177630491523
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
-21147064
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 21147065 can be divided by 4 positive divisors.
The sum of these divisors (counting 21147065) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000101010110110111001
3
Ternary
1110210101022122
4
Quaternary
1100222312321
5
Quinary
20403201230
6
Senary
2033131025
8
Octal
120526671
10
Decimal
21147065
12
Duodecimal
70b9a75
16
Hexadecimal
142adb9
20
Vigesimal
6c37d5
36
Base36
cl96h
md5
9ef8f18b92efcb32cee72a470b6201d1
sha1
5ebe8a2000178e9bfb6f6fd2b1e920e530937773
sha256
efe011d3d6f8694a1c21b6d436e24be0e55d55fa23e8b59be9d19ed3a8f51787
sha512
7f40d204d98e814ce020c6523f4086d5c59f46c1a78dcfb9f982dd11731e60db4ad27da900754bfea998fd9d1ca1ef3a2d5f45dbbdfb86edb9fbbcb08d943a27
ripemd-160
f02df428a21ac917081830f9cbce5d74fed1b923
Diameter
42294130
Circumference
132870928.09797
Area
1.4049150765491E+15
Volume
3.9613107257684E+22
Surface area
5.6196603061963E+15
Circumference
132870928.09797
Perimeter
84588260
Area
447198358114225
Diagonal
29906466.127385
Surface area
2683190148685350
Volume
9.4569327469348E+21
Space diagonal
36627791.010962
Perimeter
63441195
Area
1.936425693288E+14
Altitude
18313895.505481
Surface area
1.936425693288E+14
Volume
1.1145102124305E+21
Height
9968822.0424618