20996989 is an odd 8-digits composite number following 20996988
and preceding 20996990 . In scientific notation, it is written as 2.0996989 × 10^7.
The sum of its digits is 52. It has a total of 3 prime factors and 8 positive divisors.
There are 18241536 positive integers (up to 20996989) that are relatively prime to 20996989.
20996989 has 8 divisors, whose sum is 23942520
The reverse of 20996989 is 98969902
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 52
Digital Root 7
Name
twenty million nine hundred ninety-six thousand nine hundred eighty-nine
Scientific notation
2.0996989 × 10^7
Engineering notation
2.0996989 × 10^6
Prime Factorization
13 × 17 × 95009
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20996989
Product of the distinct prime numbers
The prime factorization of 20996989 is 13 × 17 × 95009.
Since it has a total of 3 prime factors.
4 , 4 , 13 , 85 , 541 , 979 , 8360 , 6238 , 27047 , 20699 , 204051 , 815151 , 2208340 , 570906 , 47736264 , 15161349 , 825597201 , 59446050 , 7277233245 , 9798023153
n×2
41993978
n×3
62990967
n×4
83987956
n×5
104984945
n÷2
10498494.5
n÷3
6998996.3333333
n÷3
5249247.25
n÷5
4199397.8
n2
440873547066121
n3
9.2570170181383E+21
n4
1.9436948450266E+29
n5
4.0811739280381E+36
2 √n
4582.2471561451
3 √n
275.87923110199
4 √n
67.692297613134
5 √n
29.136099001552
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
-20996988
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 20996989 can be divided by 8 positive divisors.
The sum of these divisors (counting 20996989) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000110001101111101
3
Ternary
1110111202110021
4
Quaternary
1100012031331
5
Quinary
20333400424
6
Senary
2030012141
8
Octal
120061575
10
Decimal
20996989
12
Duodecimal
7047051
16
Hexadecimal
140637d
20
Vigesimal
6b4c99
36
Base36
ci1dp
md5
e88f08cb59a0a1e792b4c45f4a8482a7
sha1
1adc37d79ff67c5241735a5e1cd6a9c5b55de4a6
sha256
286cf4b61bea73b0ab52e61a2b6fa06be46561d39ddc0094c10ddc262c1e83a1
sha512
5f608dc69ce3155a5d96a946856eeb10b74b7d88cae6ff978b8713f8b805fe3bbc2a9da787c3d44ed695fb3f28d6ffc7dc97a07f2d209589d5ee4f2a3527c01b
ripemd-160
f0f96e6b05968bcbf2a1e401d2ecdc23d5ba1720
Diameter
41993978
Circumference
131927972.77981
Area
1.385045096625E+15
Volume
3.8775702211119E+22
Surface area
5.5401803865E+15
Circumference
131927972.77981
Perimeter
83987956
Area
440873547066121
Diagonal
29694226.612799
Surface area
2645241282396726
Volume
9.2570170181383E+21
Space diagonal
36367851.753965
Perimeter
62990967
Area
1.9090384580791E+14
Altitude
18183925.876982
Surface area
1.9090384580791E+14
Volume
1.0909499178475E+21
Height
9898075.5375996