18978020 (number)

18978020 is an even 8-digits composite number following 18978019 and preceding 18978021. In scientific notation, it is written as 1.8978020 × 10^7. The sum of its digits is 35. It has a total of 4 prime factors and 12 positive divisors. There are 7591200 positive integers (up to 18978020) that are relatively prime to 18978020.

Interesting facts

Basic properties

Name

Name eighteen million nine hundred seventy-eight thousand twenty

Notation

Scientific notation 1.8978020 × 10^7
Engineering notation 1.8978020 × 10^6

Prime Factorization of 18978020

Prime Factorization 2 × 2 × 5 × 948901

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 9489010
Product of the distinct prime numbers

The prime factorization of 18978020 is 2 × 2 × 5 × 948901. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 9, 71, 93, 142, 973, 5417, 1502, 75434, 16500, 131004, 880518, 6519046, 6586106, 69339352, 29792863, 107325817, 238059093, 19367146, 1966084739

Basic calculations (n = 18978020)

Multiplication

n×y
n×2 37956040
n×3 56934060
n×4 75912080
n×5 94890100

Division

n÷y
n÷2 9489010
n÷3 6326006.6666667
n÷3 4744505
n÷5 3795604

Exponentiation

ny
n2 360165243120400
n3 6.8352231872438E+21
n4 1.2971900235198E+29
n5 2.4618098210159E+36

Nth Root

y√n
2√n 4356.376935023
3√n 266.73722785533
4√n 66.002855506584
5√n 28.552897086113

Divisors of 18978020

1, 2, 4, 5, 10, 20, 948901, 1897802, 3795604, 4744505, 9489010, 18978020

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -18978019
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18978020 can be divided by 12 positive divisors. The sum of these divisors (counting 18978020) is 1, the average is 0.083333333333333.

Base conversion 18978020

Base System Value
2 Binary 1001000011001010011100100
3 Ternary 1022201011221122
4 Quaternary 1020121103210
5 Quinary 14324244040
6 Senary 1514433112
8 Octal 110312344
10 Decimal 18978020
12 Duodecimal 6432798
16 Hexadecimal 12194e4
20 Vigesimal 5ic510
36 Base36 barj8

Cryptographic Hash Functions

md5 9b7e1564ec2a0b408f0508968dafd771
sha1 a87c44dc79205832f060dda4caf9b1ebd720d376
sha256 c9e01117897fcb894d3a73143725e9533edf8bb5c292742e490c8add6a1fc4ea
sha512 ee9d0f7d6871950c359f4ebb90fdacf528aa7a006c4c72661906de36a1b5438ed0b585e4855486a283e4991619dbb0c384e537addf6994cb932d163b5e651dcb
ripemd-160 442eddfcf772aaa58e64f52813ba76a8157d183d

18978020 as geometric shapes

Circle

Radius = n
Diameter 37956040
Circumference 119242416.42336
Area 1.1314924818654E+15

Sphere

Radius = n
Volume 2.8631315934256E+22
Surface area 4.5259699274617E+15
Circumference 119242416.42336

Square

Length = n
Perimeter 75912080
Area 360165243120400
Diagonal 26838973.270988

Cube

Length = n
Surface area 2160991458722400
Volume 6.8352231872438E+21
Space diagonal 32870894.867058

Equilateral Triangle

Length = n
Perimeter 56934060
Area 1.5595612505123E+14
Altitude 16435447.433529

Triangular Pyramid

Length = n
Surface area 1.5595612505123E+14
Volume 8.055387777706E+20
Height 8946324.4236626