20996487 is an odd 8-digits composite number following 20996486
and preceding 20996488 . In scientific notation, it is written as 2.0996487 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 12 positive divisors.
There are 13974048 positive integers (up to 20996487) that are relatively prime to 20996487.
20996487 has 12 divisors, whose sum is 30379440
The reverse of 20996487 is 78469902
Previous prime number is 727
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
twenty million nine hundred ninety-six thousand four hundred eighty-seven
Scientific notation
2.0996487 × 10^7
Engineering notation
2.0996487 × 10^6
Prime Factorization
3 × 3 × 727 × 3209
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
6998829
Product of the distinct prime numbers
The prime factorization of 20996487 is 3 × 3 × 727 × 3209.
Since it has a total of 4 prime factors.
8 , 8 , 68 , 87 , 815 , 1 , 3687 , 7379 , 78203 , 71140 , 655362 , 369657 , 8259182 , 2499377 , 29588637 , 30914344 , 995400557 , 405666773 , 6435592660 , 4222570628
n×2
41992974
n×3
62989461
n×4
83985948
n×5
104982435
n÷2
10498243.5
n÷3
6998829
n÷3
5249121.75
n÷5
4199297.4
n2
440852466341169
n3
9.2563530784503E+21
n4
1.9435089707909E+29
n5
4.0806860839595E+36
2 √n
4582.1923792002
3 √n
275.87703249346
4 √n
67.69189300943
5 √n
29.135959681942
1 , 3 , 9 , 727 , 2181 , 3209 , 6543 , 9627 , 28881 , 2332943 , 6998829 , 20996487
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20996486
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20996487 can be divided by 12 positive divisors.
The sum of these divisors (counting 20996487) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010000000110000110000111
3
Ternary
1110111201202200
4
Quaternary
1100012012013
5
Quinary
20333341422
6
Senary
2030005543
8
Octal
120060607
10
Decimal
20996487
12
Duodecimal
70468b3
16
Hexadecimal
1406187
20
Vigesimal
6b4b47
36
Base36
ci0zr
md5
4947030377dd194e65fed25d4d6b7be2
sha1
bb709616143dc0b67d84fa613eb10c41879c6e20
sha256
af638b92b49c8586d7e28f1d741da43a558224b60f9c9c758b6af8b2ef51b059
sha512
a8832d3e46b30d42b8b5fff2f32bece16ae53a8d661415bb431c7f905caa1138f54361a7a9583687f9d4fe60ea2807ecaa302b88efe8fee4bd5258c4e06c0286
ripemd-160
dcc1e16e698087a36a77f2e8ebe3af9167aa0f29
Diameter
41992974
Circumference
131924818.62079
Area
1.3849788695744E+15
Volume
3.8772921107057E+22
Surface area
5.5399154782974E+15
Circumference
131924818.62079
Perimeter
83985948
Area
440852466341169
Diagonal
29693516.67759
Surface area
2645114798047014
Volume
9.2563530784503E+21
Space diagonal
36366982.264459
Perimeter
62989461
Area
1.9089471758624E+14
Altitude
18183491.13223
Surface area
1.9089471758624E+14
Volume
1.0908716718049E+21
Height
9897838.8925301