20145289 is an odd 8-digits composite number following 20145288
and preceding 20145290 . In scientific notation, it is written as 2.0145289 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 18960256 positive integers (up to 20145289) that are relatively prime to 20145289.
20145289 has 4 divisors, whose sum is 21330324
The reverse of 20145289 is 98254102
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million one hundred forty-five thousand two hundred eighty-nine
Scientific notation
2.0145289 × 10^7
Engineering notation
2.0145289 × 10^6
Prime Factorization
17 × 1185017
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20145289
Product of the distinct prime numbers
The prime factorization of 20145289 is 17 × 1185017.
Since it has a total of 2 prime factors.
8 , 8 , 23 , 9 , 785 , 475 , 6828 , 5781 , 47750 , 38278 , 1896 , 586733 , 5740123 , 2078224 , 95245918 , 94362644 , 615538657 , 278720089 , 9588721587 , 8890068502
n×2
40290578
n×3
60435867
n×4
80581156
n×5
100726445
n÷2
10072644.5
n÷3
6715096.3333333
n÷3
5036322.25
n÷5
4029057.8
n2
405832668893521
n3
8.1756164005013E+21
n4
1.6470015514124E+29
n5
3.3179322236651E+36
2 √n
4488.3503651119
3 √n
272.09746813295
4 √n
66.995151803036
5 √n
28.895798516542
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
-20145288
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 20145289 can be divided by 4 positive divisors.
The sum of these divisors (counting 20145289) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110110010010001001
3
Ternary
1101220111010211
4
Quaternary
1030312102021
5
Quinary
20124122124
6
Senary
1555441121
8
Octal
114662211
10
Decimal
20145289
12
Duodecimal
68b61a1
16
Hexadecimal
1336489
20
Vigesimal
65i349
36
Base36
bzs7d
md5
b58e2f38e9ddb7fc3238cb5e816550c8
sha1
5d7bc21c2174e271b7dfc00feb2e96f10b31a602
sha256
e42073de73120902fa8ff415549f097d8e161e237076dcae4e3cba0e4a0112a5
sha512
06b768aa48640432b3e239d4264a7ce94e558202ff7cc46145bd0962fa10abbe9b4b361e63f5559c882874ec05192f5702c8ffd136ea82c7622783cf266ca54b
ripemd-160
84617806368d63d00db58b57b32cb9e1b9faa70f
Diameter
40290578
Circumference
126576583.85369
Area
1.2749609311826E+15
Volume
3.4245941896511E+22
Surface area
5.0998437247305E+15
Circumference
126576583.85369
Perimeter
80581156
Area
405832668893521
Diagonal
28489740.921726
Surface area
2434996013361126
Volume
8.1756164005013E+21
Space diagonal
34892664.081158
Perimeter
60435867
Area
1.7573070047371E+14
Altitude
17446332.040579
Surface area
1.7573070047371E+14
Volume
9.635056328624E+20
Height
9496580.3072418