20665615 is an odd 8-digits composite number following 20665614
and preceding 20665616 . In scientific notation, it is written as 2.0665615 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 15584800 positive integers (up to 20665615) that are relatively prime to 20665615.
20665615 has 8 divisors, whose sum is 24823728
The reverse of 20665615 is 51656602
Previous prime number is 1633
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million six hundred sixty-five thousand six hundred fifteen
Scientific notation
2.0665615 × 10^7
Engineering notation
2.0665615 × 10^6
Prime Factorization
5 × 1633 × 2531
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20665615
Product of the distinct prime numbers
The prime factorization of 20665615 is 5 × 1633 × 2531.
Since it has a total of 3 prime factors.
2 , 8 , 46 , 51 , 718 , 265 , 9073 , 2344 , 80274 , 58388 , 884684 , 295855 , 5760194 , 1862704 , 97333170 , 18239898 , 472529782 , 752015971 , 8628542659 , 6554907501
n×2
41331230
n×3
61996845
n×4
82662460
n×5
103328075
n÷2
10332807.5
n÷3
6888538.3333333
n÷3
5166403.75
n÷5
4133123
n2
427067643328225
n3
8.8256154959784E+21
n4
1.8238677197792E+29
n5
3.7691348107886E+36
2 √n
4545.9448962784
3 √n
274.42022204892
4 √n
67.423622687293
5 √n
29.043547836999
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20665614
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20665615 can be divided by 8 positive divisors.
The sum of these divisors (counting 20665615) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110110101010100001111
3
Ternary
1102212220220011
4
Quaternary
1032311110033
5
Quinary
20242244430
6
Senary
2014534051
8
Octal
116652417
10
Decimal
20665615
12
Duodecimal
6b07327
16
Hexadecimal
13b550f
20
Vigesimal
69340f
36
Base36
caxov
md5
c957425ddbd8c2f0573ef6660cb78f2a
sha1
9a139951e660a450f281fdbb164ee51e02ba9a86
sha256
48953283ecb32fa52b031aae85b7624180bcebd57e5d1104216505fd91e13fdb
sha512
9eaff75e0dce2cab6877413aa17e7fc2ff3df4e25b3d9c30ad1de22e30619129565a83c6ae7c56faa3f46cfbbe526531b225c8e460e7c80cbf999621efd8a868
ripemd-160
b28d1da063077ce402ddd57ae466a2439102501b
Diameter
41331230
Circumference
129845888.53183
Area
1.3416725708659E+15
Volume
3.6968651740765E+22
Surface area
5.3666902834634E+15
Circumference
129845888.53183
Perimeter
82662460
Area
427067643328225
Diagonal
29225593.007781
Surface area
2562405859969350
Volume
8.8256154959784E+21
Space diagonal
35793895.149658
Perimeter
61996845
Area
1.849257141283E+14
Altitude
17896947.574829
Surface area
1.849257141283E+14
Volume
1.0401087608919E+21
Height
9741864.335927