20991298 is an even 8-digits composite number following 20991297
and preceding 20991299 . In scientific notation, it is written as 2.0991298 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 10495648 positive integers (up to 20991298) that are relatively prime to 20991298.
20991298 has 4 divisors, whose sum is 31486950
The reverse of 20991298 is 89219902
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty million nine hundred ninety-one thousand two hundred ninety-eight
Scientific notation
2.0991298 × 10^7
Engineering notation
2.0991298 × 10^6
Prime Factorization
2 × 10495649
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20991298
Product of the distinct prime numbers
The prime factorization of 20991298 is 2 × 10495649.
Since it has a total of 2 prime factors.
2 , 8 , 63 , 30 , 818 , 194 , 2134 , 9703 , 32165 , 53008 , 278631 , 52685 , 6546991 , 9714823 , 93246280 , 3997297 , 280246899 , 507458283 , 4291331173 , 5790473327
n×2
41982596
n×3
62973894
n×4
83965192
n×5
104956490
n÷2
10495649
n÷3
6997099.3333333
n÷3
5247824.5
n÷5
4198259.6
n2
440634591724804
n3
9.2494920240037E+21
n4
1.9415884342448E+29
n5
4.0756461416587E+36
2 √n
4581.6261305349
3 √n
275.85430418554
4 √n
67.687710336034
5 √n
29.13451942727
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
-20991297
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 20991298 can be divided by 4 positive divisors.
The sum of these divisors (counting 20991298) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000100110101000010
3
Ternary
1110111110122111
4
Quaternary
1100010311002
5
Quinary
20333210143
6
Senary
2025525534
8
Octal
120046502
10
Decimal
20991298
12
Duodecimal
70438aa
16
Hexadecimal
1404d42
20
Vigesimal
6b3i4i
36
Base36
chwzm
md5
e7a315dcc5586d821a49f56ea83aa296
sha1
b291201f3ba540b0a156fcaffbe412fd9d4bcfe1
sha256
d304d421efaf2b4da42db341ce7ef10801f3fbe6f67af63862ce24a55bddf7f8
sha512
d79ffe811b5f5dc4fef745fecfc07914c4b39af3f4087212fc64d6e22e92f398be58fab77f4b87c7a58a42f62e67ea1f0819a58b1ea61b954e6d1b1b659a5c50
ripemd-160
2963d9f03aa0cb27973edccad906fe982b81d9e4
Diameter
41982596
Circumference
131892215.17223
Area
1.3842943962802E+15
Volume
3.8744181589397E+22
Surface area
5.5371775851207E+15
Circumference
131892215.17223
Perimeter
83965192
Area
440634591724804
Diagonal
29686178.323415
Surface area
2643807550348824
Volume
9.2494920240037E+21
Space diagonal
36357994.652819
Perimeter
62973894
Area
1.9080037510993E+14
Altitude
18178997.326409
Surface area
1.9080037510993E+14
Volume
1.090063088784E+21
Height
9895392.7744717