21207664 is an even 8-digits composite number following 21207663
and preceding 21207665 . In scientific notation, it is written as 2.1207664 × 10^7.
The sum of its digits is 28. It has a total of 6 prime factors and 20 positive divisors.
There are 10539008 positive integers (up to 21207664) that are relatively prime to 21207664.
21207664 has 20 divisors, whose sum is 41341104
The reverse of 21207664 is 46670212
Previous prime number is 167
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million two hundred seven thousand six hundred sixty-four
Scientific notation
2.1207664 × 10^7
Engineering notation
2.1207664 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 167 × 7937
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
2650958
Product of the distinct prime numbers
The prime factorization of 21207664 is 2 × 2 × 2 × 2 × 167 × 7937.
Since it has a total of 6 prime factors.
6 , 8 , 47 , 25 , 74 , 34 , 8442 , 1885 , 88039 , 43328 , 712796 , 227213 , 5911347 , 1934291 , 17085790 , 17989926 , 322888568 , 974138910 , 4835311938 , 8539363127
n×2
42415328
n×3
63622992
n×4
84830656
n×5
106038320
n÷2
10603832
n÷3
7069221.3333333
n÷3
5301916
n÷5
4241532.8
n2
449765012336896
n3
9.5384652605967E+21
n4
2.0228856632241E+29
n5
4.2900679456073E+36
2 √n
4605.1779553021
3 √n
276.79884782395
4 √n
67.861461488109
5 √n
29.194333632138
1 , 2 , 4 , 8 , 16 , 167 , 334 , 668 , 1336 , 2672 , 7937 , 15874 , 31748 , 63496 , 126992 , 1325479 , 2650958 , 5301916 , 10603832 , 21207664
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21207663
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21207664 can be divided by 20 positive divisors.
The sum of these divisors (counting 21207664) is 1, the average is 0.05.
Base
System
Value
2
Binary
1010000111001101001110000
3
Ternary
1110220110110001
4
Quaternary
1100321221300
5
Quinary
20412121124
6
Senary
2034315344
8
Octal
120715160
10
Decimal
21207664
12
Duodecimal
7128b54
16
Hexadecimal
1439a70
20
Vigesimal
6caj34
36
Base36
cmjxs
md5
35b7325f68435c96ad80d9486ae2f462
sha1
c4f5fd4e79417010efe10dc2b0fdd9a399fc5eda
sha256
790ce8ab7670b813441bc60b5e6cf1fcb289472b28f0bee6d1b78cb94c8a69c9
sha512
b60efbadf9b1f11fb4baf9cb08449d5bde2d7ab2264476acdf3e91ac6b3cb387cda687ef50d3ebb7e2aaa14590fa73ca8d4c72819ac52d28db091dddb6853a28
ripemd-160
00830f50726fb34ddc41305d5c9137b77635fd8e
Diameter
42415328
Circumference
133251682.8444
Area
1.4129784585993E+15
Volume
3.9954629852283E+22
Surface area
5.6519138343973E+15
Circumference
133251682.8444
Perimeter
84830656
Area
449765012336896
Diagonal
29992166.055052
Surface area
2698590074021376
Volume
9.5384652605967E+21
Space diagonal
36732751.557849
Perimeter
63622992
Area
1.9475396320859E+14
Altitude
18366375.778925
Surface area
1.9475396320859E+14
Volume
1.1241189113134E+21
Height
9997388.6850172