18366981 (number)

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.

Interesting facts

Basic properties

Name

Name eighteen million three hundred sixty-six thousand nine hundred eighty-one

Notation

Scientific notation 1.8366981 × 10^7
Engineering notation 1.8366981 × 10^6

Prime Factorization of 18366981

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.

Most popular turbo-numbers

Basic calculations (n = 18366981)

Multiplication

n×y
n×2 36733962
n×3 55100943
n×4 73467924
n×5 91834905

Division

n÷y
n÷2 9183490.5
n÷3 6122327
n÷3 4591745.25
n÷5 3673396.2

Exponentiation

ny
n2 337345991054361
n3 6.1960274081216E+21
n4 1.1380231768045E+29
n5 2.0902050065928E+36

Nth Root

y√n
2√n 4285.6715926445
3√n 263.84321211433
4√n 65.465040996279
5√n 28.366617677987

Divisors of 18366981

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 conversion 18366981

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

Cryptographic Hash Functions

md5 b863c63e895da71ac13b51700319853e
sha1 7ac2728e408d04cc55fb9f1c54a999e1ec12c26a
sha256 d293338aae8dc462bb67e9beaf9d96a8e4c1191aad3848fc2277b9d6cf50ca54
sha512 1625446ed45ec83c121c1fbfc552b119c889fabf89ae3b8180bc23be8bc115179ba377eace5f18fbfd40ccb5694caf9e663677470f44d0e83cffebc7d78cde54
ripemd-160 56b82cf650032eeb05ed284b0fd8ac64798305ad

18366981 as geometric shapes

Circle

Radius = n
Diameter 36733962
Circumference 115403145.15645
Area 1.0598036872143E+15

Sphere

Radius = n
Volume 2.5953858915728E+22
Surface area 4.2392147488574E+15
Circumference 115403145.15645

Square

Length = n
Perimeter 73467924
Area 337345991054361
Diagonal 25974833.630049

Cube

Length = n
Surface area 2024075946326166
Volume 6.1960274081216E+21
Space diagonal 31812544.273652

Equilateral Triangle

Length = n
Perimeter 55100943
Area 1.4607509905896E+14
Altitude 15906272.136826

Triangular Pyramid

Length = n
Surface area 1.4607509905896E+14
Volume 7.3020883278342E+20
Height 8658277.876683