20081187 is an odd 8-digits composite number following 20081186
and preceding 20081188 . In scientific notation, it is written as 2.0081187 × 10^7.
The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors.
There are 11474928 positive integers (up to 20081187) that are relatively prime to 20081187.
20081187 has 4 divisors, whose sum is 20400000
The reverse of 20081187 is 78118002
Previous prime number is 63
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million eighty-one thousand one hundred eighty-seven
Scientific notation
2.0081187 × 10^7
Engineering notation
2.0081187 × 10^6
Prime Factorization
63 × 318749
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20081187
Product of the distinct prime numbers
The prime factorization of 20081187 is 63 × 318749.
Since it has a total of 2 prime factors.
9 , 3 , 46 , 100 , 311 , 155 , 1355 , 8626 , 16529 , 68289 , 853630 , 729662 , 8288398 , 51762 , 29853568 , 7222336 , 193223832 , 320280671 , 5981384416 , 3990070968
n×2
40162374
n×3
60243561
n×4
80324748
n×5
100405935
n÷2
10040593.5
n÷3
6693729
n÷3
5020296.75
n÷5
4016237.4
n2
403254071328969
n3
8.0978204148684E+21
n4
1.6261384604339E+29
n5
3.2654790511865E+36
2 √n
4481.2037445311
3 √n
271.80855815958
4 √n
66.94179370566
5 √n
28.877385868739
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
-20081186
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 20081187 can be divided by 4 positive divisors.
The sum of these divisors (counting 20081187) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100100110101000100011
3
Ternary
1101210020012200
4
Quaternary
1030212220203
5
Quinary
20120044222
6
Senary
1554224243
8
Octal
114465043
10
Decimal
20081187
12
Duodecimal
6885083
16
Hexadecimal
1326a23
20
Vigesimal
65a2j7
36
Base36
byeqr
md5
16cd07a9cdbe81d5058c3aa00ea0f3e1
sha1
f5f52ada41191322c6b3b5426cbefb88587b3e13
sha256
0d174d802f1b39bc49c1d75ee29da0b126e9c1fdda549fdeef4609e913dcc5c6
sha512
cf1d1c6d374de3662f0b082098aae8003bdad969e9726665b06ce94f0e71efdd7e29ac2ed3f58954c0bb426128f816590e2117903c3eeb03a4297c3aa8f5a47f
ripemd-160
3943159e726187a7fe98420086fd86826dcbe1f8
Diameter
40162374
Circumference
126173819.10913
Area
1.2668600280173E+15
Volume
3.392007083392E+22
Surface area
5.0674401120691E+15
Circumference
126173819.10913
Perimeter
80324748
Area
403254071328969
Diagonal
28399087.00395
Surface area
2419524427973814
Volume
8.0978204148684E+21
Space diagonal
34781636.160292
Perimeter
60243561
Area
1.7461413497519E+14
Altitude
17390818.080146
Surface area
1.7461413497519E+14
Volume
9.5433728803071E+20
Height
9466362.3346501