18389949 (number)

18389949 is an odd 8-digits composite number following 18389948 and preceding 18389950. In scientific notation, it is written as 1.8389949 × 10^7. The sum of its digits is 51. It has a total of 3 prime factors and 8 positive divisors. There are 11726880 positive integers (up to 18389949) that are relatively prime to 18389949.

Interesting facts

Basic properties

Name

Name eighteen million three hundred eighty-nine thousand nine hundred forty-nine

Notation

Scientific notation 1.8389949 × 10^7
Engineering notation 1.8389949 × 10^6

Prime Factorization of 18389949

Prime Factorization 23 × 3 × 266521

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 18389949
Product of the distinct prime numbers

The prime factorization of 18389949 is 23 × 3 × 266521. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 18389949)

Multiplication

n×y
n×2 36779898
n×3 55169847
n×4 73559796
n×5 91949745

Division

n÷y
n÷2 9194974.5
n÷3 6129983
n÷3 4597487.25
n÷5 3677989.8

Exponentiation

ny
n2 338190224222601
n3 6.2193009757522E+21
n4 1.1437262775973E+29
n5 2.1033067914975E+36

Nth Root

y√n
2√n 4288.35038214
3√n 263.9531453808
4√n 65.485497494789
5√n 28.373708650916

Divisors of 18389949

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 -18389948
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 18389949 can be divided by 8 positive divisors. The sum of these divisors (counting 18389949) is 1, the average is 0.125.

Base conversion 18389949

Base System Value
2 Binary 1000110001001101110111101
3 Ternary 1021121022021020
4 Quaternary 1012021232331
5 Quinary 14201434244
6 Senary 1454054353
8 Octal 106115675
10 Decimal 18389949
12 Duodecimal 61aa3b9
16 Hexadecimal 1189bbd
20 Vigesimal 5eieh9
36 Base36 ay5rx

Cryptographic Hash Functions

md5 fef0a1b20919fde2c2c35d7508cabeae
sha1 d2115c0555bd56d856fc40e98c63af268610b3a5
sha256 0db4e9b738a05e29d43cff4414bda14b5c3afbd014ca1c6c70ab84f43131e8a4
sha512 22b6c46fc9aa239e8443d3a85bdc090aa7b5aa32c88dfbcaa99b00d0d89094540d44f0ce01013e3c4b66d7485818799ab9591f5430f9e6495fe4dc417197d394
ripemd-160 0a197ba7cc3b90b21e325d2f1ce4cb58854aa32c

18389949 as geometric shapes

Circle

Radius = n
Diameter 36779898
Circumference 115547457.35658
Area 1.0624559239336E+15

Sphere

Radius = n
Volume 2.6051347007849E+22
Surface area 4.2498236957344E+15
Circumference 115547457.35658

Square

Length = n
Perimeter 73559796
Area 338190224222601
Diagonal 26007315.28715

Cube

Length = n
Surface area 2029141345335606
Volume 6.2193009757522E+21
Space diagonal 31852326.0166

Equilateral Triangle

Length = n
Perimeter 55169847
Area 1.4644066274416E+14
Altitude 15926163.0083

Triangular Pyramid

Length = n
Surface area 1.4644066274416E+14
Volume 7.3295164903242E+20
Height 8669105.0957165