21669439 is an odd 8-digits composite number following 21669438
and preceding 21669440 . In scientific notation, it is written as 2.1669439 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 19699480 positive integers (up to 21669439) that are relatively prime to 21669439.
21669439 has 4 divisors, whose sum is 23639400
The reverse of 21669439 is 93496612
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty-one million six hundred sixty-nine thousand four hundred thirty-nine
Scientific notation
2.1669439 × 10^7
Engineering notation
2.1669439 × 10^6
Prime Factorization
11 × 1969949
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21669439
Product of the distinct prime numbers
The prime factorization of 21669439 is 11 × 1969949.
Since it has a total of 2 prime factors.
9 , 9 , 69 , 1 , 300 , 675 , 8434 , 7184 , 73067 , 19348 , 695647 , 18281 , 5403416 , 7038250 , 52427858 , 31107333 , 769742147 , 814102511 , 3786684160 , 8358059264
n×2
43338878
n×3
65008317
n×4
86677756
n×5
108347195
n÷2
10834719.5
n÷3
7223146.3333333
n÷3
5417359.75
n÷5
4333887.8
n2
469564586574721
n3
1.0175201165341E+22
n4
2.2049090096509E+29
n5
4.777914128518E+36
2 √n
4655.0444681012
3 √n
278.79344346254
4 √n
68.227886293665
5 √n
29.320375883404
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
-21669438
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 21669439 can be divided by 4 positive divisors.
The sum of these divisors (counting 21669439) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010101010011000111111
3
Ternary
1111202220212211
4
Quaternary
1102222120333
5
Quinary
21021410224
6
Senary
2052241251
8
Octal
122523077
10
Decimal
21669439
12
Duodecimal
7310227
16
Hexadecimal
14aa63f
20
Vigesimal
6f8dbj
36
Base36
cwg8v
md5
174a09c3e2dd7352de8d03f85e9b527a
sha1
89844c1d295c55920c14a2b094edb7072e065223
sha256
2b79493db12343ad9711dc56ee436b6c89297f1ba52f4c3cd38dd014d9d92708
sha512
625fc9e6dbe3df9b2d929f49293dc627c37f09b00c32bffd9200028a432a6a4a5bb2384172269e5056ad46f6bccf854b97d0e4e7b88818a74a8a3f65b38441b0
ripemd-160
475eb6a1f085cf043c82fc730425b4f02a739e5b
Diameter
43338878
Circumference
136153100.73962
Area
1.4751806555691E+15
Volume
4.2621782973112E+22
Surface area
5.9007226222763E+15
Circumference
136153100.73962
Perimeter
86677756
Area
469564586574721
Diagonal
30645214.522816
Surface area
2817387519448326
Volume
1.0175201165341E+22
Space diagonal
37532569.319515
Perimeter
65008317
Area
2.0332743034562E+14
Altitude
18766284.659757
Surface area
2.0332743034562E+14
Volume
1.199158957325E+21
Height
10215071.507605