20451997 is an odd 8-digits composite number following 20451996
and preceding 20451998 . In scientific notation, it is written as 2.0451997 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 20264256 positive integers (up to 20451997) that are relatively prime to 20451997.
20451997 has 4 divisors, whose sum is 20639740
The reverse of 20451997 is 79915402
Previous prime number is 109
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty million four hundred fifty-one thousand nine hundred ninety-seven
Scientific notation
2.0451997 × 10^7
Engineering notation
2.0451997 × 10^6
Prime Factorization
109 × 187633
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20451997
Product of the distinct prime numbers
The prime factorization of 20451997 is 109 × 187633.
Since it has a total of 2 prime factors.
9 , 9 , 71 , 21 , 555 , 921 , 3206 , 2319 , 82116 , 87133 , 84456 , 962673 , 5373634 , 5770010 , 35375888 , 41856192 , 270902937 , 6971786 , 6036650707 , 5550051196
n×2
40903994
n×3
61355991
n×4
81807988
n×5
102259985
n÷2
10225998.5
n÷3
6817332.3333333
n÷3
5112999.25
n÷5
4090399.4
n2
418284181288009
n3
8.5547468208498E+21
n4
1.7496165631578E+29
n5
3.5783152700854E+36
2 √n
4522.3884176395
3 √n
273.47139548465
4 √n
67.248705694902
5 √n
28.983254080465
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
-20451996
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 20451997 can be divided by 4 positive divisors.
The sum of these divisors (counting 20451997) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110000001001010011101
3
Ternary
1102111001212101
4
Quaternary
1032001022131
5
Quinary
20213430442
6
Senary
2010205101
8
Octal
116011235
10
Decimal
20451997
12
Duodecimal
6a23791
16
Hexadecimal
138129d
20
Vigesimal
67g9jh
36
Base36
c6cv1
md5
3ae68a6d698278b6738a3f3067be81b4
sha1
e1f895ca8729dc4aff868fc41fea72f3b84f9333
sha256
c66b95b376c0e0b9d7b06242776a54b12c1a5603bdd941c4a250b479121e33f3
sha512
2c5582b2e849b8af6e75f178809fc30e90ab8753ac612e988e4ac3aea46f2eb5daec76c56c610bf452bee60298e42f9a1d355f83a524595ccaa4c2e4dd4d6b59
ripemd-160
fd5c7be02c0d87467828ff46736b8de23c3bc512
Diameter
40903994
Circumference
128503687.05288
Area
1.3140785110472E+15
Volume
3.5834039687603E+22
Surface area
5.2563140441889E+15
Circumference
128503687.05288
Perimeter
81807988
Area
418284181288009
Diagonal
28923491.535014
Surface area
2509705087728054
Volume
8.5547468208498E+21
Space diagonal
35423897.920246
Perimeter
61355991
Area
1.811223634983E+14
Altitude
17711948.960123
Surface area
1.811223634983E+14
Volume
1.0081865813928E+21
Height
9641163.8450046