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.
18987069 has 4 divisors, whose sum is 25316096
The reverse of 18987069 is 96078981
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3
Name
eighteen million nine hundred eighty-seven thousand sixty-nine
Scientific notation
1.8987069 × 10^7
Engineering notation
1.8987069 × 10^6
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.
2 , 9 , 98 , 97 , 275 , 577 , 8192 , 3054 , 84322 , 90802 , 506879 , 96430 , 3338949 , 7913521 , 2158755 , 94012516 , 60268382 , 715037888 , 8663915661 , 4938166914
n×2
37974138
n×3
56961207
n×4
75948276
n×5
94935345
n÷2
9493534.5
n÷3
6329023
n÷3
4746767.25
n÷5
3797413.8
n2
360508789210761
n3
6.8450052558512E+21
n4
1.2996658709821E+29
n5
2.4676845569282E+36
2 √n
4357.4154036539
3 √n
266.77961586782
4 √n
66.010721884054
5 √n
28.555619455475
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
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
md5
aa875ae91ea13111b10256a931934118
sha1
6cc61d3c70b81435b3bcde8c950d2e9fea4c3674
sha256
a03bd18c588183054d77d3cbff8fc4d6a6d9dd0278cd59d1bbbfffdcdfd05ce3
sha512
bd8f46b1efd6a19a7fd5838d45757fc303483e367ad836adcb92e0622c338191d23d444385dfac23022124ea6b502600201f57beefbee9206a7f5ee637f89677
ripemd-160
b817a21fab43d79f270ad2a8608c6ee2e6b42fc8
Diameter
37974138
Circumference
119299272.96721
Area
1.1325717637391E+15
Volume
2.8672290967421E+22
Surface area
4.5302870549563E+15
Circumference
119299272.96721
Perimeter
75948276
Area
360508789210761
Diagonal
26851770.489514
Surface area
2163052735264566
Volume
6.8450052558512E+21
Space diagonal
32886568.194816
Perimeter
56961207
Area
1.5610488487204E+14
Altitude
16443284.097408
Surface area
1.5610488487204E+14
Volume
8.0669160561165E+20
Height
8950590.1631713