20997906 is an even 8-digits composite number following 20997905
and preceding 20997907 . In scientific notation, it is written as 2.0997906 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 6999300 positive integers (up to 20997906) that are relatively prime to 20997906.
20997906 has 8 divisors, whose sum is 41995824
The reverse of 20997906 is 60979902
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty million nine hundred ninety-seven thousand nine hundred six
Scientific notation
2.0997906 × 10^7
Engineering notation
2.0997906 × 10^6
Prime Factorization
2 × 3 × 3499651
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20997906
Product of the distinct prime numbers
The prime factorization of 20997906 is 2 × 3 × 3499651.
Since it has a total of 3 prime factors.
6 , 5 , 71 , 83 , 337 , 362 , 8980 , 9426 , 15880 , 86029 , 670107 , 665411 , 4023582 , 8622482 , 87306705 , 13264549 , 390440355 , 193916296 , 9135691400 , 930494262
n×2
41995812
n×3
62993718
n×4
83991624
n×5
104989530
n÷2
10498953
n÷3
6999302
n÷3
5249476.5
n÷5
4199581.2
n2
440912056384836
n3
9.2582299142355E+21
n4
1.944034414655E+29
n5
4.0820651899692E+36
2 √n
4582.3472151289
3 √n
275.88324719484
4 √n
67.693036681249
5 √n
29.13635348886
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20997905
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20997906 can be divided by 8 positive divisors.
The sum of these divisors (counting 20997906) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000110011100010010
3
Ternary
1110111210201020
4
Quaternary
1100012130102
5
Quinary
20333413111
6
Senary
2030020310
8
Octal
120063422
10
Decimal
20997906
12
Duodecimal
7047696
16
Hexadecimal
1406712
20
Vigesimal
6b4ef6
36
Base36
ci236
md5
c45faab3b52415afff1be114a1db012a
sha1
c05ac7353145182013e7e450ed3e0f60f6822c97
sha256
29e649d381c37316f9e56ef1b3d9ec89c6d7986bb8115568f74a426c36960e5a
sha512
1cbebae4c42b1c5e5ee2b893da5de7a2c8d629ffe4046ec7eb7ae18f80b4bd68318217561ed38d4f7ea3441d404e93499f16ff57b24cd9b8c91db624abc12696
ripemd-160
45e4d942aa36829c8ec5f2e43943d50fe6e163a8
Diameter
41995812
Circumference
131933734.46074
Area
1.3851660772178E+15
Volume
3.878078277841E+22
Surface area
5.5406643088711E+15
Circumference
131933734.46074
Perimeter
83991624
Area
440912056384836
Diagonal
29695523.446635
Surface area
2645472338309016
Volume
9.2582299142355E+21
Space diagonal
36369440.044555
Perimeter
62993718
Area
1.9092052083205E+14
Altitude
18184720.022278
Surface area
1.9092052083205E+14
Volume
1.0910928590233E+21
Height
9898507.8155451