18390949 (number)

18390949 is an odd 8-digits composite number following 18390948 and preceding 18390950. In scientific notation, it is written as 1.8390949 × 10^7. The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors. There are 18079180 positive integers (up to 18390949) that are relatively prime to 18390949.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.8390949 × 10^7
Engineering notation 1.8390949 × 10^6

Prime Factorization of 18390949

Prime Factorization 59 × 311711

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 18390949
Product of the distinct prime numbers

The prime factorization of 18390949 is 59 × 311711. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 18390949)

Multiplication

n×y
n×2 36781898
n×3 55172847
n×4 73563796
n×5 91954745

Division

n÷y
n÷2 9195474.5
n÷3 6130316.3333333
n÷3 4597737.25
n÷5 3678189.8

Exponentiation

ny
n2 338227005120601
n3 6.2203156015957E+21
n4 1.1439750699285E+29
n5 2.1038787168327E+36

Nth Root

y√n
2√n 4288.4669755053
3√n 263.95792966743
4√n 65.486387711534
5√n 28.374017222642

Divisors of 18390949

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 -18390948
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 18390949 can be divided by 4 positive divisors. The sum of these divisors (counting 18390949) is 1, the average is 0.25.

Base conversion 18390949

Base System Value
2 Binary 1000110001001111110100101
3 Ternary 1021121100122021
4 Quaternary 1012021332211
5 Quinary 14202002244
6 Senary 1454103141
8 Octal 106117645
10 Decimal 18390949
12 Duodecimal 61aaab1
16 Hexadecimal 1189fa5
20 Vigesimal 5eih79
36 Base36 ay6jp

Cryptographic Hash Functions

md5 2daea75025f15cdf5db7c11195c55027
sha1 fbd553206f6aa77d81c4467b7c2cebe3a8b85e5e
sha256 e2230fb541d578204cdace4d885c8ac5df4f16c5b42d4df1fad0546381e3ce5b
sha512 badc08077926720e8ddc3e6ed50a63fba91a0855c8ae3b6b1c56316d1f061996eb310f89433664485dc99c5ae1befcf64014e38fb3b39185010e5c82af714137
ripemd-160 bc6b6cabbe5346e146d60c6ece3f39bd62781f1b

18390949 as geometric shapes

Circle

Radius = n
Diameter 36781898
Circumference 115553740.54189
Area 1.0625714745326E+15

Sphere

Radius = n
Volume 2.6055597062644E+22
Surface area 4.2502858981302E+15
Circumference 115553740.54189

Square

Length = n
Perimeter 73563796
Area 338227005120601
Diagonal 26008729.500712

Cube

Length = n
Surface area 2029362030723606
Volume 6.2203156015957E+21
Space diagonal 31854058.067408

Equilateral Triangle

Length = n
Perimeter 55172847
Area 1.4645658934018E+14
Altitude 15927029.033704

Triangular Pyramid

Length = n
Surface area 1.4645658934018E+14
Volume 7.330712238348E+20
Height 8669576.5002373