20123805 is an odd 8-digits composite number following 20123804
and preceding 20123806 . In scientific notation, it is written as 2.0123805 × 10^7.
The sum of its digits is 21. It has a total of 5 prime factors and 32 positive divisors.
There are 9584640 positive integers (up to 20123805) that are relatively prime to 20123805.
20123805 has 32 divisors, whose sum is 35804160
The reverse of 20123805 is 50832102
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million one hundred twenty-three thousand eight hundred five
Scientific notation
2.0123805 × 10^7
Engineering notation
2.0123805 × 10^6
Prime Factorization
3 × 5 × 31 × 13 × 3329
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20123805
Product of the distinct prime numbers
The prime factorization of 20123805 is 3 × 5 × 31 × 13 × 3329.
Since it has a total of 5 prime factors.
4 , 5 , 15 , 7 , 386 , 424 , 5123 , 5697 , 54194 , 66746 , 280980 , 468232 , 9484403 , 6843034 , 71848090 , 17932035 , 103252889 , 532792652 , 5584847160 , 9166326511
n×2
40247610
n×3
60371415
n×4
80495220
n×5
100619025
n÷2
10061902.5
n÷3
6707935
n÷3
5030951.25
n÷5
4024761
n2
404967527678025
n3
8.1494875583247E+21
n4
1.6399869847365E+29
n5
3.3002778283376E+36
2 √n
4485.9564197616
3 √n
272.00070735831
4 √n
66.977282863383
5 √n
28.889632684667
1 , 3 , 5 , 13 , 15 , 31 , 39 , 65 , 93 , 155 , 195 , 403 , 465 , 1209 , 2015 , 3329 , 6045 , 9987 , 16645 , 43277 , 49935 , 103199 , 129831 , 216385 , 309597 , 515995 , 649155 , 1341587 , 1547985 , 4024761 , 6707935 , 20123805
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20123804
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20123805 can be divided by 32 positive divisors.
The sum of these divisors (counting 20123805) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001100110001000010011101
3
Ternary
1101212101200010
4
Quaternary
1030301002131
5
Quinary
20122430210
6
Senary
1555153433
8
Octal
114610235
10
Decimal
20123805
12
Duodecimal
68a5879
16
Hexadecimal
133109d
20
Vigesimal
65f9a5
36
Base36
bzbml
md5
81856c5b2348aaa065bf1104cad2e76f
sha1
ed5fb1a13feeecb8541308d2e4d7e687ff95acdf
sha256
ad52fdd8b251484210e69acd89b4a5d5983b3801560b5c266fbee63733e05c6f
sha512
eccccb3343424ae04faf28955d787788af16bb5b51b1d68702523b88b889703d7437bc6e374a8ff8836f415ab0551f066a4fa22a7572c9889f010fa08eff5286
ripemd-160
62a35d5ee501d6c166a965d5f08a3dc7696e7fa7
Diameter
40247610
Circumference
126441595.90055
Area
1.2722430098957E+15
Volume
3.4136493658339E+22
Surface area
5.0889720395828E+15
Circumference
126441595.90055
Perimeter
80495220
Area
404967527678025
Diagonal
28459357.957552
Surface area
2429805166068150
Volume
8.1494875583247E+21
Space diagonal
34855452.701609
Perimeter
60371415
Area
1.7535608333847E+14
Altitude
17427726.350804
Surface area
1.7535608333847E+14
Volume
9.6042631928113E+20
Height
9486452.6525172