20145240 is an even 8-digits composite number following 20145239
and preceding 20145241 . In scientific notation, it is written as 2.0145240 × 10^7.
The sum of its digits is 18. It has a total of 6 prime factors and 32 positive divisors.
There are 5132160 positive integers (up to 20145240) that are relatively prime to 20145240.
20145240 has 32 divisors, whose sum is 39755520
The reverse of 20145240 is 04254102
Previous prime number is 23
Is Prime? no
Number parity even
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million one hundred forty-five thousand two hundred forty
Scientific notation
2.0145240 × 10^7
Engineering notation
2.0145240 × 10^6
Prime Factorization
2 × 2 × 2 × 135 × 23 × 811
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
5036310
Product of the distinct prime numbers
The prime factorization of 20145240 is 2 × 2 × 2 × 135 × 23 × 811.
Since it has a total of 6 prime factors.
2 , 3 , 39 , 19 , 201 , 719 , 235 , 2034 , 89460 , 90380 , 495091 , 794923 , 946743 , 9543043 , 71792848 , 63263201 , 587222401 , 135521910 , 7453331755 , 6268784593
n×2
40290480
n×3
60435720
n×4
80580960
n×5
100726200
n÷2
10072620
n÷3
6715080
n÷3
5036310
n÷5
4029048
n2
405830694657600
n3
8.1755567432441E+21
n4
1.6469855272627E+29
n5
3.3178918723234E+36
2 √n
4488.3449065329
3 √n
272.09724752245
4 √n
66.995111064412
5 √n
28.895784459703
1 , 2 , 4 , 8 , 23 , 46 , 92 , 135 , 184 , 270 , 540 , 811 , 1080 , 1622 , 3105 , 3244 , 6210 , 6488 , 12420 , 18653 , 24840 , 37306 , 74612 , 109485 , 149224 , 218970 , 437940 , 875880 , 2518155 , 5036310 , 10072620 , 20145240
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
-20145239
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 20145240 can be divided by 32 positive divisors.
The sum of these divisors (counting 20145240) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001100110110010001011000
3
Ternary
1101220111002000
4
Quaternary
1030312101120
5
Quinary
20124121430
6
Senary
1555441000
8
Octal
114662130
10
Decimal
20145240
12
Duodecimal
68b6160
16
Hexadecimal
1336458
20
Vigesimal
65i320
36
Base36
bzs60
md5
2b1988432ae57c9069b4256e3b0a8f7f
sha1
49e1c044eb47516dfca80d45265ba2274466c3da
sha256
8df1c7f90265c0817a4fbeb42f9c32a2301732fa39b2ae7510ea73580eebb6d6
sha512
c921c4bc789e19ebd1530dd7a753301f33a81658bff65e7bfef66d5a6fb17000294d9cbac8efe2cbb865f3db83a36f14b834ce0e238e051313165c82fd015c99
ripemd-160
25dfcfc0595836776fe52f19679a23e06325a29a
Diameter
40290480
Circumference
126576275.97761
Area
1.2749547289376E+15
Volume
3.4245692004776E+22
Surface area
5.0998189157502E+15
Circumference
126576275.97761
Perimeter
80580960
Area
405830694657600
Diagonal
28489671.625261
Surface area
2434984167945600
Volume
8.1755567432441E+21
Space diagonal
34892579.210669
Perimeter
60435720
Area
1.7572984560448E+14
Altitude
17446289.605334
Surface area
1.7572984560448E+14
Volume
9.6349860218721E+20
Height
9496557.2084203