20145243 is an odd 8-digits composite number following 20145242
and preceding 20145244 . In scientific notation, it is written as 2.0145243 × 10^7.
The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors.
There are 13430160 positive integers (up to 20145243) that are relatively prime to 20145243.
20145243 has 4 divisors, whose sum is 26860328
The reverse of 20145243 is 34254102
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million one hundred forty-five thousand two hundred forty-three
Scientific notation
2.0145243 × 10^7
Engineering notation
2.0145243 × 10^6
Prime Factorization
3 × 6715081
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20145243
Product of the distinct prime numbers
The prime factorization of 20145243 is 3 × 6715081.
Since it has a total of 2 prime factors.
8 , 10 , 69 , 73 , 872 , 371 , 217 , 9664 , 45408 , 41948 , 275104 , 519807 , 3023035 , 4365143 , 94895207 , 44785154 , 629212158 , 584181253 , 4665041708 , 5476758812
n×2
40290486
n×3
60435729
n×4
80580972
n×5
100726215
n÷2
10072621.5
n÷3
6715081
n÷3
5036310.75
n÷5
4029048.6
n2
405830815529049
n3
8.1755603957209E+21
n4
1.6469865083297E+29
n5
3.3178943428024E+36
2 √n
4488.3452407318
3 √n
272.09726102922
4 √n
66.995113558616
5 √n
28.895785320326
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
-20145242
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 20145243 can be divided by 4 positive divisors.
The sum of these divisors (counting 20145243) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110110010001011011
3
Ternary
1101220111002010
4
Quaternary
1030312101123
5
Quinary
20124121433
6
Senary
1555441003
8
Octal
114662133
10
Decimal
20145243
12
Duodecimal
68b6163
16
Hexadecimal
133645b
20
Vigesimal
65i323
36
Base36
bzs63
md5
27507c3dad10cd8947a84973d17f9d18
sha1
064dedf7ce124406df0bfd8a30fbb4ea1e4e8160
sha256
72e4b1ae20a9ad202a587d2b284228e3c1cdb64434631bd454bf0b86c9afc825
sha512
d66d62c865828958bf00a77d07d5af50a0774c27401eab29b480002e079e8f500096750d8f38cb6c1824bce35394803e4966566f10b4783c0b6e7f9d2ea96b68
ripemd-160
5e6ce8e18f216a1ceb99777747f346298b61a1cd
Diameter
40290486
Circumference
126576294.82716
Area
1.2749551086664E+15
Volume
3.4245707304235E+22
Surface area
5.0998204346657E+15
Circumference
126576294.82716
Perimeter
80580972
Area
405830815529049
Diagonal
28489675.867902
Surface area
2434984893174294
Volume
8.1755603957209E+21
Space diagonal
34892584.406821
Perimeter
60435729
Area
1.7572989794336E+14
Altitude
17446292.203411
Surface area
1.7572989794336E+14
Volume
9.6349903263573E+20
Height
9496558.6226339