18984890 (number)

18984890 is an even 8-digits composite number following 18984889 and preceding 18984891. In scientific notation, it is written as 1.8984890 × 10^7. The sum of its digits is 47. It has a total of 5 prime factors and 32 positive divisors. There are 7209664 positive integers (up to 18984890) that are relatively prime to 18984890.

Interesting facts

Basic properties

Name

Name eighteen million nine hundred eighty-four thousand eight hundred ninety

Notation

Scientific notation 1.8984890 × 10^7
Engineering notation 1.8984890 × 10^6

Prime Factorization of 18984890

Prime Factorization 2 × 5 × 23 × 197 × 419

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 18984890
Product of the distinct prime numbers

The prime factorization of 18984890 is 2 × 5 × 23 × 197 × 419. Since it has a total of 5 prime factors.

Most popular turbo-numbers

7, 1, 54, 58, 601, 795, 4351, 8233, 97529, 55728, 792007, 105164, 7128039, 4018169, 35411808, 67673741, 783691477, 664971098, 2660622674, 628182557

Basic calculations (n = 18984890)

Multiplication

n×y
n×2 37969780
n×3 56954670
n×4 75939560
n×5 94924450

Division

n÷y
n÷2 9492445
n÷3 6328296.6666667
n÷3 4746222.5
n÷5 3796978

Exponentiation

ny
n2 360426048312100
n3 6.8426488803399E+21
n4 1.2990693630188E+29
n5 2.4662688959281E+36

Nth Root

y√n
2√n 4357.1653629395
3√n 266.76941006192
4√n 66.008827916723
5√n 28.554964003585

Divisors of 18984890

1, 2, 5, 10, 23, 46, 115, 197, 230, 394, 419, 838, 985, 1970, 2095, 4190, 4531, 9062, 9637, 19274, 22655, 45310, 48185, 82543, 96370, 165086, 412715, 825430, 1898489, 3796978, 9492445, 18984890

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -18984889
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18984890 can be divided by 32 positive divisors. The sum of these divisors (counting 18984890) is 1, the average is 0.03125.

Base conversion 18984890

Base System Value
2 Binary 1001000011010111110111010
3 Ternary 1022201112101002
4 Quaternary 1020122332322
5 Quinary 14330004030
6 Senary 1514525002
8 Octal 110327672
10 Decimal 18984890
12 Duodecimal 6436762
16 Hexadecimal 121afba
20 Vigesimal 5id24a
36 Base36 bawu2

Cryptographic Hash Functions

md5 281e61fa2bdf84441ae555b6dd53bc97
sha1 664ccf4c21eb13ae1b02bb885c8d76897cf240c1
sha256 97051fd14929dc4d762ab577a6f7486b5569b45b15c983cecf3604da2f62857b
sha512 1fda48fec27bc60af21fdbe9498724e05de991b3a848dbe1375bb67c5dcb8c7e3cc012835752663ef55468e606a6a66a9b33c6456891f48ba4ad15a5c5d56201
ripemd-160 7736a81ef77f7f0977dfaf9aea335228be05c417

18984890 as geometric shapes

Circle

Radius = n
Diameter 37969780
Circumference 119285581.90642
Area 1.1323118255397E+15

Sphere

Radius = n
Volume 2.866242060476E+22
Surface area 4.5292473021588E+15
Circumference 119285581.90642

Square

Length = n
Perimeter 75939560
Area 360426048312100
Diagonal 26848688.918161

Cube

Length = n
Surface area 2162556289872600
Volume 6.8426488803399E+21
Space diagonal 32882794.056106

Equilateral Triangle

Length = n
Perimeter 56954670
Area 1.5606905701196E+14
Altitude 16441397.028053

Triangular Pyramid

Length = n
Surface area 1.5606905701196E+14
Volume 8.0641390409448E+20
Height 8949562.9727204