20187145 is an odd 8-digits composite number following 20187144
and preceding 20187146 . In scientific notation, it is written as 2.0187145 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 14430400 positive integers (up to 20187145) that are relatively prime to 20187145.
20187145 has 16 divisors, whose sum is 26879040
The reverse of 20187145 is 54178102
Previous prime number is 59
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred eighty-seven thousand one hundred forty-five
Scientific notation
2.0187145 × 10^7
Engineering notation
2.0187145 × 10^6
Prime Factorization
11 × 5 × 59 × 6221
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20187145
Product of the distinct prime numbers
The prime factorization of 20187145 is 11 × 5 × 59 × 6221.
Since it has a total of 4 prime factors.
10 , 4 , 85 , 16 , 922 , 84 , 9557 , 4533 , 43019 , 93551 , 679876 , 672840 , 3085109 , 8995025 , 64931373 , 15930506 , 606995850 , 568361019 , 2846332439 , 7566111415
n×2
40374290
n×3
60561435
n×4
80748580
n×5
100935725
n÷2
10093572.5
n÷3
6729048.3333333
n÷3
5046786.25
n÷5
4037429
n2
407520823251025
n3
8.2266819494878E+21
n4
1.6607322138319E+29
n5
3.3525442006796E+36
2 √n
4493.0106832724
3 √n
272.2857840069
4 √n
67.029923789845
5 √n
28.907795948107
1 , 5 , 11 , 55 , 59 , 295 , 649 , 3245 , 6221 , 31105 , 68431 , 342155 , 367039 , 1835195 , 4037429 , 20187145
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20187144
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20187145 can be divided by 16 positive divisors.
The sum of these divisors (counting 20187145) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101000000100000001001
3
Ternary
1101222121120001
4
Quaternary
1031000200021
5
Quinary
20131442040
6
Senary
2000403001
8
Octal
115004011
10
Decimal
20187145
12
Duodecimal
6916461
16
Hexadecimal
1340809
20
Vigesimal
6637h5
36
Base36
c0oi1
md5
57f0ea1e4372c85a20f553cb12b96654
sha1
2fd39296315edd00e3077beb7e714e1846841726
sha256
bfddd5a4e054a5249f140fde2037b3f1f3642a48bc45de22e7202a92002cd77e
sha512
edcb55223fab6cdd507de7b728ae816b702fdd4006d88874945afad8ce2b72ad60a3feb174d77f3e9f20e327dd3c9cc262d6d4dc9701fb4404d94b3eb0ae58cf
ripemd-160
74f3161c7886e5203cc8ff71769efb79a571fb11
Diameter
40374290
Circumference
126839572.8579
Area
1.2802644245103E+15
Volume
3.4459844767908E+22
Surface area
5.1210576980411E+15
Circumference
126839572.8579
Perimeter
80748580
Area
407520823251025
Diagonal
28548934.244592
Surface area
2445124939506150
Volume
8.2266819494878E+21
Space diagonal
34965160.79976
Perimeter
60561435
Area
1.7646169275327E+14
Altitude
17482580.39988
Surface area
1.7646169275327E+14
Volume
9.6952376552463E+20
Height
9516311.4148641