20804989 is an odd 8-digits composite number following 20804988
and preceding 20804990 . In scientific notation, it is written as 2.0804989 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 20242656 positive integers (up to 20804989) that are relatively prime to 20804989.
20804989 has 4 divisors, whose sum is 21367324
The reverse of 20804989 is 98940802
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty million eight hundred four thousand nine hundred eighty-nine
Scientific notation
2.0804989 × 10^7
Engineering notation
2.0804989 × 10^6
Prime Factorization
37 × 562297
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20804989
Product of the distinct prime numbers
The prime factorization of 20804989 is 37 × 562297.
Since it has a total of 2 prime factors.
9 , 8 , 33 , 46 , 804 , 320 , 7828 , 4828 , 60113 , 20691 , 529406 , 302439 , 928219 , 8392037 , 57683463 , 21210173 , 293579337 , 531144361 , 2325726479 , 5664691748
n×2
41609978
n×3
62414967
n×4
83219956
n×5
104024945
n÷2
10402494.5
n÷3
6934996.3333333
n÷3
5201247.25
n÷5
4160997.8
n2
432847567290121
n3
9.0053888761477E+21
n4
1.8735701650898E+29
n5
3.8979606675421E+36
2 √n
4561.2486229102
3 √n
275.03575953715
4 √n
67.537016686482
5 √n
29.082617948018
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
-20804988
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 20804989 can be divided by 4 positive divisors.
The sum of these divisors (counting 20804989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111010111010101111101
3
Ternary
1110011000002011
4
Quaternary
1033113111331
5
Quinary
20311224424
6
Senary
2021531221
8
Octal
117272575
10
Decimal
20804989
12
Duodecimal
6b73b11
16
Hexadecimal
13d757d
20
Vigesimal
6a0c99
36
Base36
cdx8d
md5
c40a6e0b65b9da6549273623058f9124
sha1
4c764804fa414c21fc237e211b277420af61c85c
sha256
e4666c20b03477cdb5e6cddda1beac34b0e7f9abc1fe0b5b3f2d6e51e5c26349
sha512
e9f63b263a502469c6d1229598873251e1ec0daff1574ef57182716710ff8355d2f44cb5700ceae52ed95abdd9383ecac199e6ffd2633f92adc2f30460546132
ripemd-160
d12e21c1dc6c69dad00756fb302fb011f6a118ba
Diameter
41609978
Circumference
130721601.20083
Area
1.3598307375229E+15
Volume
3.77216847147E+22
Surface area
5.4393229500914E+15
Circumference
130721601.20083
Perimeter
83219956
Area
432847567290121
Diagonal
29422697.608823
Surface area
2597085403740726
Volume
9.0053888761477E+21
Space diagonal
36035297.998912
Perimeter
62414967
Area
1.8742849461977E+14
Altitude
18017648.999456
Surface area
1.8742849461977E+14
Volume
1.0612952569243E+21
Height
9807565.8696077