18397938 (number)

18397938 is an even 8-digits composite number following 18397937 and preceding 18397939. In scientific notation, it is written as 1.8397938 × 10^7. The sum of its digits is 48. It has a total of 4 prime factors and 16 positive divisors. There are 5660880 positive integers (up to 18397938) that are relatively prime to 18397938.

Interesting facts

Basic properties

Name

Name eighteen million three hundred ninety-seven thousand nine hundred thirty-eight

Notation

Scientific notation 1.8397938 × 10^7
Engineering notation 1.8397938 × 10^6

Prime Factorization of 18397938

Prime Factorization 2 × 3 × 13 × 235871

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 18397938
Product of the distinct prime numbers

The prime factorization of 18397938 is 2 × 3 × 13 × 235871. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 2, 28, 22, 30, 148, 6641, 6711, 70665, 57958, 819382, 118443, 3219384, 5920162, 61777603, 29273858, 157552107, 583322011, 772646964, 4503317942

Basic calculations (n = 18397938)

Multiplication

n×y
n×2 36795876
n×3 55193814
n×4 73591752
n×5 91989690

Division

n÷y
n÷2 9198969
n÷3 6132646
n÷3 4599484.5
n÷5 3679587.6

Exponentiation

ny
n2 338484122651844
n3 6.227409902533E+21
n4 1.1457150128739E+29
n5 2.1078793772523E+36

Nth Root

y√n
2√n 4289.2817580569
3√n 263.99136220591
4√n 65.492608423065
5√n 28.376173455785

Divisors of 18397938

1, 2, 3, 6, 13, 26, 39, 78, 235871, 471742, 707613, 1415226, 3066323, 6132646, 9198969, 18397938

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 -18397937
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 18397938 can be divided by 16 positive divisors. The sum of these divisors (counting 18397938) is 1, the average is 0.0625.

Base conversion 18397938

Base System Value
2 Binary 1000110001011101011110010
3 Ternary 1021121201020010
4 Quaternary 1012023223302
5 Quinary 14202213223
6 Senary 1454155350
8 Octal 106135362
10 Decimal 18397938
12 Duodecimal 61b2b56
16 Hexadecimal 118baf2
20 Vigesimal 5ejegi
36 Base36 aybxu

Cryptographic Hash Functions

md5 3a08f6ec8e5ba254a5413b89b88b1d2b
sha1 770d80cb30e5075e12b80be60cbfca4b4c0fd89f
sha256 b5c08c7bacdd91ebe5a291e26572db895d094adc8840691b9c6f3dfff71258bf
sha512 0a1b4b505be9ebab02deef5be6480a272910e5bbd5c10b17b67ee6392b10357b7d0ddc812f911114a702239f001fbedc1caec75cda8d96272bc279da8c6e8c4d
ripemd-160 044e757283cb8883f78212f7f0e8c6165685085b

18397938 as geometric shapes

Circle

Radius = n
Diameter 36795876
Circumference 115597653.724
Area 1.0633792330798E+15

Sphere

Radius = n
Volume 2.608531360092E+22
Surface area 4.2535169323193E+15
Circumference 115597653.724

Square

Length = n
Perimeter 73591752
Area 338484122651844
Diagonal 26018613.439299

Cube

Length = n
Surface area 2030904735911064
Volume 6.227409902533E+21
Space diagonal 31866163.370502

Equilateral Triangle

Length = n
Perimeter 55193814
Area 1.4656792449709E+14
Altitude 15933081.685251

Triangular Pyramid

Length = n
Surface area 1.4656792449709E+14
Volume 7.3390729521823E+20
Height 8672871.1464331