20865087 is an odd 8-digits composite number following 20865086
and preceding 20865088 . In scientific notation, it is written as 2.0865087 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors.
There are 13866552 positive integers (up to 20865087) that are relatively prime to 20865087.
20865087 has 16 divisors, whose sum is 31008000
The reverse of 20865087 is 78056802
Previous prime number is 379
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million eight hundred sixty-five thousand eighty-seven
Scientific notation
2.0865087 × 10^7
Engineering notation
2.0865087 × 10^6
Prime Factorization
9 × 3 × 379 × 2039
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20865087
Product of the distinct prime numbers
The prime factorization of 20865087 is 9 × 3 × 379 × 2039.
Since it has a total of 4 prime factors.
2 , 8 , 95 , 83 , 962 , 320 , 3273 , 5403 , 49446 , 42552 , 43458 , 311446 , 3581907 , 5739441 , 45238235 , 56010535 , 206995569 , 745835023 , 7532516574 , 4053076185
n×2
41730174
n×3
62595261
n×4
83460348
n×5
104325435
n÷2
10432543.5
n÷3
6955029
n÷3
5216271.75
n÷5
4173017.4
n2
435351855517569
n3
9.0836543409855E+21
n4
1.8953123810259E+29
n5
3.9545857722283E+36
2 √n
4567.8317613502
3 √n
275.30033083881
4 √n
67.585736374994
5 √n
29.099400376082
1 , 3 , 9 , 27 , 379 , 1137 , 2039 , 3411 , 6117 , 10233 , 18351 , 55053 , 772781 , 2318343 , 6955029 , 20865087
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20865086
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20865087 can be divided by 16 positive divisors.
The sum of these divisors (counting 20865087) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111100110000000111111
3
Ternary
1110021001112000
4
Quaternary
1033212000333
5
Quinary
20320140322
6
Senary
2023113343
8
Octal
117460077
10
Decimal
20865087
12
Duodecimal
6ba2853
16
Hexadecimal
13e603f
20
Vigesimal
6a82e7
36
Base36
cf7lr
md5
76bc9784999ba0825a05271c8ab204ac
sha1
cf1eee9753140d23b0962a4aa54d7c25b3259f92
sha256
d49a047cf13866a32b3fcd3f9b530970381f6751a6acd2702e1b7e38e1dabfcf
sha512
73c6035df42984569f9494c81aba8f495afeb9d14e2d26cb4b0a4ecf871c2d9d31e11ea438dd0c608da5ca937c9d7b6f480986df96ce6e55ccfa3490ed4483ef
ripemd-160
4e85fdce1cc0bc44efcf3d358f895428bb6f3495
Diameter
41730174
Circumference
131099208.07142
Area
1.3676981910207E+15
Volume
3.8049522327185E+22
Surface area
5.4707927640827E+15
Circumference
131099208.07142
Perimeter
83460348
Area
435351855517569
Diagonal
29507689.015495
Surface area
2612111133105414
Volume
9.0836543409855E+21
Space diagonal
36139390.788345
Perimeter
62595261
Area
1.8851288323145E+14
Altitude
18069695.394172
Surface area
1.8851288323145E+14
Volume
1.0705189304109E+21
Height
9835896.3384982