20138245 is an odd 8-digits composite number following 20138244
and preceding 20138246 . In scientific notation, it is written as 2.0138245 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 16094544 positive integers (up to 20138245) that are relatively prime to 20138245.
20138245 has 8 divisors, whose sum is 24189984
The reverse of 20138245 is 54283102
Previous prime number is 2027
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred thirty-eight thousand two hundred forty-five
Scientific notation
2.0138245 × 10^7
Engineering notation
2.0138245 × 10^6
Prime Factorization
5 × 2027 × 1987
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20138245
Product of the distinct prime numbers
The prime factorization of 20138245 is 5 × 2027 × 1987.
Since it has a total of 3 prime factors.
8 , 7 , 13 , 53 , 973 , 511 , 7486 , 4759 , 36548 , 17244 , 804353 , 763132 , 5107601 , 7686537 , 32266769 , 35037915 , 919926706 , 119413490 , 8183030180 , 6493183412
n×2
40276490
n×3
60414735
n×4
80552980
n×5
100691225
n÷2
10069122.5
n÷3
6712748.3333333
n÷3
5034561.25
n÷5
4027649
n2
405548911680025
n3
8.1670433428957E+21
n4
1.6446991976485E+29
n5
3.3121355393549E+36
2 √n
4487.5655984063
3 √n
272.06575057686
4 √n
66.989294655238
5 √n
28.893777493375
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20138244
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20138245 can be divided by 8 positive divisors.
The sum of these divisors (counting 20138245) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110100100100000101
3
Ternary
1101220010110221
4
Quaternary
1030310210011
5
Quinary
20123410440
6
Senary
1555344341
8
Octal
114644405
10
Decimal
20138245
12
Duodecimal
68b20b1
16
Hexadecimal
1334905
20
Vigesimal
65h5c5
36
Base36
bzmrp
md5
ea8bf88e0b4fccdda4eacd4605731889
sha1
9807bbd0013ff265cc5cf5dde0f7ae17a08faba2
sha256
4dace22dda8c41cacf2d72e7985912d0125d32080a64eee3e3a1f6623ab01f0f
sha512
28d07bf6bd99d90dde537a93de7b4cafcac63cd07c82c62d3c7a8d27379a0d4fd1b149a7501d5ecdeab8a6804a25af26d5cb6dcd47b1e290fa59a592916d1a39
ripemd-160
9c83db1f919efcc05f7378d52f5804031ffcc2a3
Diameter
40276490
Circumference
126532325.09638
Area
1.2740694816053E+15
Volume
3.4210031156787E+22
Surface area
5.0962779264212E+15
Circumference
126532325.09638
Perimeter
80552980
Area
405548911680025
Diagonal
28479779.201392
Surface area
2433293470080150
Volume
8.1670433428957E+21
Space diagonal
34880463.51527
Perimeter
60414735
Area
1.7560782999602E+14
Altitude
17440231.757635
Surface area
1.7560782999602E+14
Volume
9.6249528833433E+20
Height
9493259.7337974