18366981 is an odd 8-digits composite number following 18366980
and preceding 18366982 . In scientific notation, it is written as 1.8366981 × 10^7.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 12244652 positive integers (up to 18366981) that are relatively prime to 18366981.
18366981 has 4 divisors, whose sum is 24489312
The reverse of 18366981 is 18966381
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
eighteen million three hundred sixty-six thousand nine hundred eighty-one
Scientific notation
1.8366981 × 10^7
Engineering notation
1.8366981 × 10^6
Prime Factorization
3 × 6122327
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18366981
Product of the distinct prime numbers
The prime factorization of 18366981 is 3 × 6122327.
Since it has a total of 2 prime factors.
10 , 2 , 5 , 54 , 57 , 301 , 1910 , 5561 , 1905 , 73689 , 470762 , 396668 , 7282743 , 1210344 , 56898372 , 23445127 , 743097811 , 787742287 , 7455581908 , 5571460795
n×2
36733962
n×3
55100943
n×4
73467924
n×5
91834905
n÷2
9183490.5
n÷3
6122327
n÷3
4591745.25
n÷5
3673396.2
n2
337345991054361
n3
6.1960274081216E+21
n4
1.1380231768045E+29
n5
2.0902050065928E+36
2 √n
4285.6715926445
3 √n
263.84321211433
4 √n
65.465040996279
5 √n
28.366617677987
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
-18366980
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 18366981 can be divided by 4 positive divisors.
The sum of these divisors (counting 18366981) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000110000100001000000101
3
Ternary
1021120010202120
4
Quaternary
1012010020011
5
Quinary
14200220411
6
Senary
1453400153
8
Octal
106041005
10
Decimal
18366981
12
Duodecimal
6199059
16
Hexadecimal
1184205
20
Vigesimal
5efh91
36
Base36
axo1x
md5
b863c63e895da71ac13b51700319853e
sha1
7ac2728e408d04cc55fb9f1c54a999e1ec12c26a
sha256
d293338aae8dc462bb67e9beaf9d96a8e4c1191aad3848fc2277b9d6cf50ca54
sha512
1625446ed45ec83c121c1fbfc552b119c889fabf89ae3b8180bc23be8bc115179ba377eace5f18fbfd40ccb5694caf9e663677470f44d0e83cffebc7d78cde54
ripemd-160
56b82cf650032eeb05ed284b0fd8ac64798305ad
Diameter
36733962
Circumference
115403145.15645
Area
1.0598036872143E+15
Volume
2.5953858915728E+22
Surface area
4.2392147488574E+15
Circumference
115403145.15645
Perimeter
73467924
Area
337345991054361
Diagonal
25974833.630049
Surface area
2024075946326166
Volume
6.1960274081216E+21
Space diagonal
31812544.273652
Perimeter
55100943
Area
1.4607509905896E+14
Altitude
15906272.136826
Surface area
1.4607509905896E+14
Volume
7.3020883278342E+20
Height
8658277.876683