20105665 is an odd 8-digits composite number following 20105664
and preceding 20105666 . In scientific notation, it is written as 2.0105665 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 16055040 positive integers (up to 20105665) that are relatively prime to 20105665.
20105665 has 8 divisors, whose sum is 24171048
The reverse of 20105665 is 56650102
Previous prime number is 593
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred five thousand six hundred sixty-five
Scientific notation
2.0105665 × 10^7
Engineering notation
2.0105665 × 10^6
Prime Factorization
5 × 593 × 6781
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20105665
Product of the distinct prime numbers
The prime factorization of 20105665 is 5 × 593 × 6781.
Since it has a total of 3 prime factors.
7 , 8 , 6 , 69 , 945 , 625 , 9534 , 856 , 29977 , 88624 , 223455 , 679698 , 5025678 , 986519 , 98527610 , 29740128 , 676673677 , 975747082 , 4007341860 , 3459626994
n×2
40211330
n×3
60316995
n×4
80422660
n×5
100528325
n÷2
10052832.5
n÷3
6701888.3333333
n÷3
5026416.25
n÷5
4021133
n2
404237765092225
n3
8.127469085293E+21
n4
1.6340817072676E+29
n5
3.285429938895E+36
2 √n
4483.9340985345
3 √n
271.91895383079
4 √n
66.962184093221
5 √n
28.884422467238
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
-20105664
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 20105665 can be divided by 8 positive divisors.
The sum of these divisors (counting 20105665) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100101100100111000001
3
Ternary
1101211110210021
4
Quaternary
1030230213001
5
Quinary
20121340130
6
Senary
1554533441
8
Octal
114544701
10
Decimal
20105665
12
Duodecimal
6897281
16
Hexadecimal
132c9c1
20
Vigesimal
65d435
36
Base36
byxmp
md5
e7f576ebed83e90b09fa9a99fec09f7e
sha1
1501ac83e2ad6eed4d600f72ed1c664e27735c24
sha256
1927efb9bf88e43999ef8d5ae6722d070b7322c9b2716e0a52451db6169bc882
sha512
294d013e911cb5a7d6888e0e6a1ea2d3cd4e72b37b82ecd9e2d03d1a308e777a24c7c427bc76e037ad9a7cf49c0687a0d5cbadd3d9c03cc936bf6cd3cff1e805
ripemd-160
da8272d89a49d90e6fc4d0072daa2deb9f720a13
Diameter
40211330
Circumference
126327618.91907
Area
1.2699503931173E+15
Volume
3.4044262894179E+22
Surface area
5.0798015724692E+15
Circumference
126327618.91907
Perimeter
80422660
Area
404237765092225
Diagonal
28433704.12353
Surface area
2425426590553350
Volume
8.127469085293E+21
Space diagonal
34824033.299959
Perimeter
60316995
Area
1.7504008686946E+14
Altitude
17412016.64998
Surface area
1.7504008686946E+14
Volume
9.5783141734911E+20
Height
9477901.37451