20421917 is an odd 8-digits composite number following 20421916
and preceding 20421918 . In scientific notation, it is written as 2.0421917 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 20412000 positive integers (up to 20421917) that are relatively prime to 20421917.
20421917 has 4 divisors, whose sum is 20431836
The reverse of 20421917 is 71912402
Previous prime number is 7001
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million four hundred twenty-one thousand nine hundred seventeen
Scientific notation
2.0421917 × 10^7
Engineering notation
2.0421917 × 10^6
Prime Factorization
7001 × 2917
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20421917
Product of the distinct prime numbers
The prime factorization of 20421917 is 7001 × 2917.
Since it has a total of 2 prime factors.
3 , 6 , 12 , 99 , 494 , 101 , 8815 , 9658 , 43355 , 22826 , 287182 , 125760 , 329181 , 9867589 , 46655528 , 44918970 , 970554357 , 100383680 , 7066022103 , 79946870
n×2
40843834
n×3
61265751
n×4
81687668
n×5
102109585
n÷2
10210958.5
n÷3
6807305.6666667
n÷3
5105479.25
n÷5
4084383.4
n2
417054693954889
n3
8.5170563444071E+21
n4
1.7393461774981E+29
n5
3.5520783271133E+36
2 √n
4519.0615176162
3 √n
273.33725934608
4 √n
67.223965351772
5 √n
28.974723572377
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
-20421916
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 20421917 can be divided by 4 positive divisors.
The sum of these divisors (counting 20421917) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101111001110100011101
3
Ternary
1102102112121022
4
Quaternary
1031321310131
5
Quinary
20212000132
6
Senary
2005413525
8
Octal
115716435
10
Decimal
20421917
12
Duodecimal
6a0a2a5
16
Hexadecimal
1379d1d
20
Vigesimal
67cefh
36
Base36
c5pnh
md5
f2e01ca67dbb7b4c2cc236f4e8f713c8
sha1
7299e1b4b1821f1c16cf96bea18c56c774b1669f
sha256
9b7fead9419c34c4e473054f4328822ab85f1958d2542a009eedcba0a5f49e8e
sha512
daf6f67e0e3cc93a4dd3571951494cf7eee36d658c12c589f6a286b8743d96b86fdbdaa0a7d46a0455dcfb9950197ba99dd4cc7e237a28051edc3d1e426ec015
ripemd-160
48e001a2f59d740f024db64373b7ac9a39a1fae0
Diameter
40843834
Circumference
128314688.83884
Area
1.3102159626738E+15
Volume
3.5676162189066E+22
Surface area
5.2408638506953E+15
Circumference
128314688.83884
Perimeter
81687668
Area
417054693954889
Diagonal
28880951.991058
Surface area
2502328163729334
Volume
8.5170563444071E+21
Space diagonal
35371797.831955
Perimeter
61265751
Area
1.8058997986624E+14
Altitude
17685898.915977
Surface area
1.8058997986624E+14
Volume
1.0037447161464E+21
Height
9626983.9970192