20145242 is an even 8-digits composite number following 20145241
and preceding 20145243 . In scientific notation, it is written as 2.0145242 × 10^7.
The sum of its digits is 20. It has a total of 5 prime factors and 32 positive divisors.
There are 8817984 positive integers (up to 20145242) that are relatively prime to 20145242.
20145242 has 32 divisors, whose sum is 34269312
The reverse of 20145242 is 24254102
Previous prime number is 43
Is Prime? no
Number parity even
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million one hundred forty-five thousand two hundred forty-two
Scientific notation
2.0145242 × 10^7
Engineering notation
2.0145242 × 10^6
Prime Factorization
2 × 37 × 13 × 43 × 487
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20145242
Product of the distinct prime numbers
The prime factorization of 20145242 is 2 × 37 × 13 × 43 × 487.
Since it has a total of 5 prime factors.
7 , 1 , 91 , 96 , 569 , 640 , 3947 , 5068 , 35441 , 40582 , 78112 , 972450 , 5044316 , 7722259 , 50182435 , 93992259 , 155129374 , 471432314 , 9278968339 , 6704797618
n×2
40290484
n×3
60435726
n×4
80580968
n×5
100726210
n÷2
10072621
n÷3
6715080.6666667
n÷3
5036310.5
n÷5
4029048.4
n2
405830775238564
n3
8.1755591782285E+21
n4
1.6469861813073E+29
n5
3.3178935193092E+36
2 √n
4488.3451293322
3 √n
272.09725652697
4 √n
66.995112727215
5 √n
28.895785033452
1 , 2 , 13 , 26 , 37 , 43 , 74 , 86 , 481 , 487 , 559 , 962 , 974 , 1118 , 1591 , 3182 , 6331 , 12662 , 18019 , 20683 , 20941 , 36038 , 41366 , 41882 , 234247 , 272233 , 468494 , 544466 , 774817 , 1549634 , 10072621 , 20145242
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20145241
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20145242 can be divided by 32 positive divisors.
The sum of these divisors (counting 20145242) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001100110110010001011010
3
Ternary
1101220111002002
4
Quaternary
1030312101122
5
Quinary
20124121432
6
Senary
1555441002
8
Octal
114662132
10
Decimal
20145242
12
Duodecimal
68b6162
16
Hexadecimal
133645a
20
Vigesimal
65i322
36
Base36
bzs62
md5
4d99afcd89ae8e17488d6472d4612335
sha1
a6ff5f35bf2f47524b447fc1c6698fb4bec7ff4d
sha256
46101f95446d0207b8a2b5a170d4b2453688fe58d86f4d82ddd324f6f4a42ee0
sha512
d3a8f70e4e8a7918b17f257a50f7aafc2603ab83d72f7a315472edfcaddd8b028cdfa1f6c046eefdb06bc6f330aca131a12049e253c4375212e6e62c4713c01a
ripemd-160
db75d6f8ad9b0b7a50b81286609d4ebd7d99240f
Diameter
40290484
Circumference
126576288.54398
Area
1.2749549820901E+15
Volume
3.4245702204415E+22
Surface area
5.0998199283605E+15
Circumference
126576288.54398
Perimeter
80580968
Area
405830775238564
Diagonal
28489674.453688
Surface area
2434984651431384
Volume
8.1755591782285E+21
Space diagonal
34892582.67477
Perimeter
60435726
Area
1.7572988049706E+14
Altitude
17446291.337385
Surface area
1.7572988049706E+14
Volume
9.6349888915288E+20
Height
9496558.1512294