20145665 is an odd 8-digits composite number following 20145664
and preceding 20145666 . In scientific notation, it is written as 2.0145665 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 16009200 positive integers (up to 20145665) that are relatively prime to 20145665.
20145665 has 8 divisors, whose sum is 24335808
The reverse of 20145665 is 56654102
Previous prime number is 151
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million one hundred forty-five thousand six hundred sixty-five
Scientific notation
2.0145665 × 10^7
Engineering notation
2.0145665 × 10^6
Prime Factorization
5 × 151 × 26683
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20145665
Product of the distinct prime numbers
The prime factorization of 20145665 is 5 × 151 × 26683.
Since it has a total of 3 prime factors.
10 , 7 , 18 , 68 , 779 , 738 , 4866 , 2176 , 10755 , 55162 , 807324 , 331019 , 2879365 , 1852422 , 90566012 , 24124808 , 434199498 , 341991636 , 5017640357 , 5246428254
n×2
40291330
n×3
60436995
n×4
80582660
n×5
100728325
n÷2
10072832.5
n÷3
6715221.6666667
n÷3
5036416.25
n÷5
4029133
n2
405847818292225
n3
8.176074188296E+21
n4
1.6471245161256E+29
n5
3.3182418715153E+36
2 √n
4488.3922511296
3 √n
272.09916096895
4 √n
66.995464407149
5 √n
28.895906380362
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
-20145664
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 20145665 can be divided by 8 positive divisors.
The sum of these divisors (counting 20145665) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110110011000000001
3
Ternary
1101220111122202
4
Quaternary
1030312120001
5
Quinary
20124130130
6
Senary
1555442545
8
Octal
114663001
10
Decimal
20145665
12
Duodecimal
68b6455
16
Hexadecimal
1336601
20
Vigesimal
65i435
36
Base36
bzsht
md5
bd86d5b3655f6a5e8a7807d48d0155ef
sha1
75d2ff45dd7344da8fb8674fd4133f8da1d6975b
sha256
d81388be3b6a6b82bf3ff09694d5568f259324f6a35871e02554e8ce03c0cef7
sha512
0a2e8b7b8353225dd97068fe6bacad09f39ee48a24ebde5b39aa160cdd2f86c506e6da4cf990cee92a063603f08b27e82147b8fdcb402c22f641630e207dfa97
ripemd-160
935e577c8f0bb2ee942796e4555e9b9ac1340de7
Diameter
40291330
Circumference
126578946.33136
Area
1.2750085244223E+15
Volume
3.4247859473541E+22
Surface area
5.1000340976892E+15
Circumference
126578946.33136
Perimeter
80582660
Area
405847818292225
Diagonal
28490272.666025
Surface area
2435086909753350
Volume
8.176074188296E+21
Space diagonal
34893315.332262
Perimeter
60436995
Area
1.7573726035578E+14
Altitude
17446657.666131
Surface area
1.7573726035578E+14
Volume
9.635595836714E+20
Height
9496757.5553417