20389989 is an odd 8-digits composite number following 20389988
and preceding 20389990 . In scientific notation, it is written as 2.0389989 × 10^7.
The sum of its digits is 48. It has a total of 3 prime factors and 8 positive divisors.
There are 13440416 positive integers (up to 20389989) that are relatively prime to 20389989.
20389989 has 8 divisors, whose sum is 27492480
The reverse of 20389989 is 98998302
Previous prime number is 89
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3
Name
twenty million three hundred eighty-nine thousand nine hundred eighty-nine
Scientific notation
2.0389989 × 10^7
Engineering notation
2.0389989 × 10^6
Prime Factorization
3 × 89 × 76367
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20389989
Product of the distinct prime numbers
The prime factorization of 20389989 is 3 × 89 × 76367.
Since it has a total of 3 prime factors.
4 , 2 , 45 , 70 , 194 , 921 , 2010 , 1977 , 40301 , 89955 , 110475 , 60888 , 5977273 , 1025747 , 8967872 , 11808400 , 154570978 , 888560930 , 4096897156 , 6933007659
n×2
40779978
n×3
61169967
n×4
81559956
n×5
101949945
n÷2
10194994.5
n÷3
6796663
n÷3
5097497.25
n÷5
4077997.8
n2
415751651420121
n3
8.4771715991881E+21
n4
1.7284943565856E+29
n5
3.5243980917342E+36
2 √n
4515.5275439311
3 √n
273.19473821689
4 √n
67.197675137843
5 √n
28.96565797831
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
-20389988
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 20389989 can be divided by 8 positive divisors.
The sum of these divisors (counting 20389989) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101110010000001100101
3
Ternary
1102100220210210
4
Quaternary
1031302001211
5
Quinary
20204434424
6
Senary
2005010033
8
Octal
115620145
10
Decimal
20389989
12
Duodecimal
69b3919
16
Hexadecimal
1372065
20
Vigesimal
678ej9
36
Base36
c510l
md5
3e4ba32476a73388271727bdec657f56
sha1
526a20de3bbc88ff2d932bea206fdb6549aa7a95
sha256
59faef5d3a67287beb0c002b81519976c93255a70b3e26439e4a802fa82d3ade
sha512
443edb196171c00103ee2b1542dd58f4ffe6d294ee0290ced0ffe5a54189f9c84b3cf074027c49599523d1dbc7c53e800f50f12c22e5e1deff45daf55f0097c9
ripemd-160
cf98a1284447e6602f00a3d44a18ad82d4c5ee17
Diameter
40779978
Circumference
128114079.29835
Area
1.3061223338193E+15
Volume
3.5509093358973E+22
Surface area
5.2244893352771E+15
Circumference
128114079.29835
Perimeter
81559956
Area
415751651420121
Diagonal
28835798.980438
Surface area
2494509908520726
Volume
8.4771715991881E+21
Space diagonal
35316496.913771
Perimeter
61169967
Area
1.8002574589758E+14
Altitude
17658248.456885
Surface area
1.8002574589758E+14
Volume
9.9904425384465E+20
Height
9611932.9934794