20181427 is an odd 8-digits composite number following 20181426
and preceding 20181428 . In scientific notation, it is written as 2.0181427 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 17298360 positive integers (up to 20181427) that are relatively prime to 20181427.
20181427 has 4 divisors, whose sum is 23064496
The reverse of 20181427 is 72418102
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred eighty-one thousand four hundred twenty-seven
Scientific notation
2.0181427 × 10^7
Engineering notation
2.0181427 × 10^6
Prime Factorization
7 × 2883061
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20181427
Product of the distinct prime numbers
The prime factorization of 20181427 is 7 × 2883061.
Since it has a total of 2 prime factors.
10 , 6 , 7 , 41 , 901 , 526 , 9087 , 6562 , 15869 , 19250 , 859454 , 243586 , 9872978 , 6324647 , 49320069 , 83318688 , 487781513 , 499467375 , 2300393600 , 3387861525
n×2
40362854
n×3
60544281
n×4
80725708
n×5
100907135
n÷2
10090713.5
n÷3
6727142.3333333
n÷3
5045356.75
n÷5
4036285.4
n2
407289995756329
n3
8.2196933171867E+21
n4
1.6588514064319E+29
n5
3.3477988562753E+36
2 √n
4492.3743165502
3 √n
272.26007330279
4 √n
67.025176736434
5 √n
28.906158138419
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
-20181426
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 20181427 can be divided by 4 positive divisors.
The sum of these divisors (counting 20181427) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111111000110110011
3
Ternary
1101222022201021
4
Quaternary
1030333012303
5
Quinary
20131301202
6
Senary
2000320311
8
Octal
114770663
10
Decimal
20181427
12
Duodecimal
6913097
16
Hexadecimal
133f1b3
20
Vigesimal
662db7
36
Base36
c0k37
md5
8d39bcb8b79aed5572b1637f06bf9fdd
sha1
c8589eaf4fb2b1fa09ab9f27a19dedd4ce9ea9fc
sha256
31aa0518c3fa6d5a7734d815ada0430a517694d9f6fdf9d89dfc960cbf54cf26
sha512
c9854387b42765e9112cab37235c0448f5c94bfe67543fc62892ca0eed8a130f90d334584e32732be8fb77351262d43c80587997a17ae4471d0c46b6b9909aa5
ripemd-160
f9765cb5281e22b475b240364feadeb5b237204b
Diameter
40362854
Circumference
126803645.60432
Area
1.2795392585487E+15
Volume
3.443057085338E+22
Surface area
5.1181570341948E+15
Circumference
126803645.60432
Perimeter
80725708
Area
407289995756329
Diagonal
28540847.771443
Surface area
2443739974537974
Volume
8.2196933171867E+21
Space diagonal
34955256.933242
Perimeter
60544281
Area
1.7636174151612E+14
Altitude
17477628.466621
Surface area
1.7636174151612E+14
Volume
9.6870014730941E+20
Height
9513615.9238142