20998438 is an even 8-digits composite number following 20998437
and preceding 20998439 . In scientific notation, it is written as 2.0998438 × 10^7.
The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors.
There are 10499218 positive integers (up to 20998438) that are relatively prime to 20998438.
20998438 has 4 divisors, whose sum is 31497660
The reverse of 20998438 is 83489902
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty million nine hundred ninety-eight thousand four hundred thirty-eight
Scientific notation
2.0998438 × 10^7
Engineering notation
2.0998438 × 10^6
Prime Factorization
2 × 10499219
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20998438
Product of the distinct prime numbers
The prime factorization of 20998438 is 2 × 10499219.
Since it has a total of 2 prime factors.
5 , 9 , 33 , 27 , 505 , 302 , 9261 , 5376 , 99780 , 62281 , 756242 , 110277 , 9196137 , 8386672 , 78732464 , 74691101 , 106288937 , 438962379 , 4268963344 , 8975108453
n×2
41996876
n×3
62995314
n×4
83993752
n×5
104992190
n÷2
10499219
n÷3
6999479.3333333
n÷3
5249609.5
n÷5
4199687.6
n2
440934398439844
n3
9.2589336277064E+21
n4
1.9442314372751E+29
n5
4.0825823293271E+36
2 √n
4582.4052636143
3 √n
275.88557708825
4 √n
67.693465442495
5 √n
29.136501126276
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
-20998437
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 20998438 can be divided by 4 positive divisors.
The sum of these divisors (counting 20998438) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000110100100100110
3
Ternary
1110111211102221
4
Quaternary
1100012210212
5
Quinary
20333422223
6
Senary
2030022554
8
Octal
120064446
10
Decimal
20998438
12
Duodecimal
7047a5a
16
Hexadecimal
1406926
20
Vigesimal
6b4g1i
36
Base36
ci2hy
md5
1f8fe9ef1d01c3c0033133611f9e8baa
sha1
289f422fbfd60609fc095f46d418d6366c91dde2
sha256
8351157ac9fc890cc2b7c2bc8dd59bdd1101efd385c43af2198d110b7f669c38
sha512
5b42714def7c8a11263d4196aff95d645770ffc8e03e8438ea79a8b52aec5445246fb9f733e37221b37106f6deb9094fb04f2ba9f18159f74f6e37581eae88cb
ripemd-160
a18939ac486ab8081062034abb706e96e8096eef
Diameter
41996876
Circumference
131937077.11532
Area
1.3852362668536E+15
Volume
3.8783730486504E+22
Surface area
5.5409450674146E+15
Circumference
131937077.11532
Perimeter
83993752
Area
440934398439844
Diagonal
29696275.808251
Surface area
2645606390639064
Volume
9.2589336277064E+21
Space diagonal
36370361.495585
Perimeter
62995314
Area
1.9093019522566E+14
Altitude
18185180.747793
Surface area
1.9093019522566E+14
Volume
1.0911757924512E+21
Height
9898758.6027502