18393989 (number)

18393989 is an odd 8-digits prime number following 18393988 and preceding 18393990. In scientific notation, it is written as 1.8393989 × 10^7. The sum of its digits is 50. It has a total of 1 prime factors and 2 positive divisors. There are 18393988 positive integers (up to 18393989) that are relatively prime to 18393989.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.8393989 × 10^7
Engineering notation 1.8393989 × 10^6

Prime Factorization of 18393989

Prime Factorization 18393989

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 18393989
Product of the distinct prime numbers

The prime factorization of 18393989 is 18393989. Since it has a total of 1 prime factors.

Most popular turbo-numbers

5, 5, 20, 87, 312, 439, 8535, 3162, 99692, 51614, 887544, 292406, 9087872, 761963, 27624239, 13677039, 788819019, 934341858, 8646065776, 9138671906

Basic calculations (n = 18393989)

Multiplication

n×y
n×2 36787978
n×3 55181967
n×4 73575956
n×5 91969945

Division

n÷y
n÷2 9196994.5
n÷3 6131329.6666667
n÷3 4598497.25
n÷5 3678797.8

Exponentiation

ny
n2 338338831332121
n3 6.2234007417959E+21
n4 1.1447316478719E+29
n5 2.1056181338907E+36

Nth Root

y√n
2√n 4288.821399872
3√n 263.97247283386
4√n 65.489093747524
5√n 28.374955198269

Divisors of 18393989

1, 18393989

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 18393990
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 9196995
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 4288.8215164541
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999998912688
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18393989 can be divided by 2 positive divisors. The sum of these divisors (counting 18393989) is 18393990, the average is 9196995.

Base conversion 18393989

Base System Value
2 Binary 1000110001010101110000101
3 Ternary 1021121111210212
4 Quaternary 1012022232011
5 Quinary 14202101424
6 Senary 1454125205
8 Octal 106125605
10 Decimal 18393989
12 Duodecimal 61b0805
16 Hexadecimal 118ab85
20 Vigesimal 5ej4j9
36 Base36 ay8w5

Cryptographic Hash Functions

md5 6f7d6537eef584bd630b0d9f5379e320
sha1 ae89cbc64fb922671ab2fc77902ac73b8e6db9f8
sha256 4f9f51f897cece307d8a922da239d1f6668317efe5729038a237c8e57a7fa432
sha512 d9843578193137889eb2eef3cd3d75281e8305ea84c04f609129043d468a3bb5f7131eb9168393992d16117b84c2392eb47490e2f9fb9f3d5bd3016d9c553e5a
ripemd-160 9abb4b50b67aded55d005ae16c4a00f4b98572d5

18393989 as geometric shapes

Circle

Radius = n
Diameter 36787978
Circumference 115572841.42522
Area 1.0629227869371E+15

Sphere

Radius = n
Volume 2.6068520067695E+22
Surface area 4.2516911477486E+15
Circumference 115572841.42522

Square

Length = n
Perimeter 73575956
Area 338338831332121
Diagonal 26013028.709942

Cube

Length = n
Surface area 2030032987992726
Volume 6.2234007417959E+21
Space diagonal 31859323.501863

Equilateral Triangle

Length = n
Perimeter 55181967
Area 1.4650501151018E+14
Altitude 15929661.750932

Triangular Pyramid

Length = n
Surface area 1.4650501151018E+14
Volume 7.3343481109421E+20
Height 8671009.5699805