18987069 (number)

18987069 is an odd 8-digits composite number following 18987068 and preceding 18987070. In scientific notation, it is written as 1.8987069 × 10^7. The sum of its digits is 48. It has a total of 2 prime factors and 4 positive divisors. There are 12658044 positive integers (up to 18987069) that are relatively prime to 18987069.

Interesting facts

Basic properties

Name

Name eighteen million nine hundred eighty-seven thousand sixty-nine

Notation

Scientific notation 1.8987069 × 10^7
Engineering notation 1.8987069 × 10^6

Prime Factorization of 18987069

Prime Factorization 3 × 6329023

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 18987069
Product of the distinct prime numbers

The prime factorization of 18987069 is 3 × 6329023. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 18987069)

Multiplication

n×y
n×2 37974138
n×3 56961207
n×4 75948276
n×5 94935345

Division

n÷y
n÷2 9493534.5
n÷3 6329023
n÷3 4746767.25
n÷5 3797413.8

Exponentiation

ny
n2 360508789210761
n3 6.8450052558512E+21
n4 1.2996658709821E+29
n5 2.4676845569282E+36

Nth Root

y√n
2√n 4357.4154036539
3√n 266.77961586782
4√n 66.010721884054
5√n 28.555619455475

Divisors of 18987069

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 -18987068
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 18987069 can be divided by 4 positive divisors. The sum of these divisors (counting 18987069) is 1, the average is 0.25.

Base conversion 18987069

Base System Value
2 Binary 1001000011011100000111101
3 Ternary 1022201122100210
4 Quaternary 1020123200331
5 Quinary 14330041234
6 Senary 1514543033
8 Octal 110334075
10 Decimal 18987069
12 Duodecimal 6437a79
16 Hexadecimal 121b83d
20 Vigesimal 5id7d9
36 Base36 bayil

Cryptographic Hash Functions

md5 aa875ae91ea13111b10256a931934118
sha1 6cc61d3c70b81435b3bcde8c950d2e9fea4c3674
sha256 a03bd18c588183054d77d3cbff8fc4d6a6d9dd0278cd59d1bbbfffdcdfd05ce3
sha512 bd8f46b1efd6a19a7fd5838d45757fc303483e367ad836adcb92e0622c338191d23d444385dfac23022124ea6b502600201f57beefbee9206a7f5ee637f89677
ripemd-160 b817a21fab43d79f270ad2a8608c6ee2e6b42fc8

18987069 as geometric shapes

Circle

Radius = n
Diameter 37974138
Circumference 119299272.96721
Area 1.1325717637391E+15

Sphere

Radius = n
Volume 2.8672290967421E+22
Surface area 4.5302870549563E+15
Circumference 119299272.96721

Square

Length = n
Perimeter 75948276
Area 360508789210761
Diagonal 26851770.489514

Cube

Length = n
Surface area 2163052735264566
Volume 6.8450052558512E+21
Space diagonal 32886568.194816

Equilateral Triangle

Length = n
Perimeter 56961207
Area 1.5610488487204E+14
Altitude 16443284.097408

Triangular Pyramid

Length = n
Surface area 1.5610488487204E+14
Volume 8.0669160561165E+20
Height 8950590.1631713