20408505 is an odd 8-digits composite number following 20408504
and preceding 20408506 . In scientific notation, it is written as 2.0408505 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 10047168 positive integers (up to 20408505) that are relatively prime to 20408505.
20408505 has 8 divisors, whose sum is 23443840
The reverse of 20408505 is 50580402
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million four hundred eight thousand five hundred five
Scientific notation
2.0408505 × 10^7
Engineering notation
2.0408505 × 10^6
Prime Factorization
15 × 13 × 104659
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20408505
Product of the distinct prime numbers
The prime factorization of 20408505 is 15 × 13 × 104659.
Since it has a total of 3 prime factors.
10 , 1 , 87 , 93 , 16 , 684 , 4320 , 3280 , 63496 , 89200 , 858358 , 801160 , 7432075 , 7832096 , 96581779 , 6823381 , 306863913 , 570315931 , 7209454163 , 2000791846
n×2
40817010
n×3
61225515
n×4
81634020
n×5
102042525
n÷2
10204252.5
n÷3
6802835
n÷3
5102126.25
n÷5
4081701
n2
416507076335025
n3
8.5002867499187E+21
n4
1.7347814463715E+29
n5
3.540429582218E+36
2 √n
4517.5773374675
3 √n
273.27740857957
4 √n
67.212925375016
5 √n
28.970916768935
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
-20408504
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 20408505 can be divided by 8 positive divisors.
The sum of these divisors (counting 20408505) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101110110100010111001
3
Ternary
1102101212012120
4
Quaternary
1031312202321
5
Quinary
20211033010
6
Senary
2005231453
8
Octal
115664271
10
Decimal
20408505
12
Duodecimal
6a02589
16
Hexadecimal
13768b9
20
Vigesimal
67b155
36
Base36
c5fax
md5
077775f90af1a6322721ebfda4964dab
sha1
81b92d0de4806caf91dd50a5c72cd676d2974442
sha256
b697170082096d3b782e4ed423ef33c6d3ea5d75a129c2f2ac63f751ebb1470e
sha512
28eb94706b66cd81d8680b00c87134ab10f4ac79f3cb68f4e5b2c8ce4f97b2339ce876c56634b06d29fd750720d6b8bee5eff058ef0266feb1631d4e2c7ae6bf
ripemd-160
d9e70afff24274f5d5276e3416a8c027ce75b66b
Diameter
40817010
Circumference
128230418.7575
Area
1.3084955711823E+15
Volume
3.5605917875935E+22
Surface area
5.2339822847291E+15
Circumference
128230418.7575
Perimeter
81634020
Area
416507076335025
Diagonal
28861984.558759
Surface area
2499042458010150
Volume
8.5002867499187E+21
Space diagonal
35348567.566523
Perimeter
61225515
Area
1.8035285448106E+14
Altitude
17674283.783262
Surface area
1.8035285448106E+14
Volume
1.0017684004829E+21
Height
9620661.5195864