20406505 is an odd 8-digits composite number following 20406504
and preceding 20406506 . In scientific notation, it is written as 2.0406505 × 10^7.
The sum of its digits is 22. It has a total of 4 prime factors and 16 positive divisors.
There are 13859712 positive integers (up to 20406505) that are relatively prime to 20406505.
20406505 has 16 divisors, whose sum is 28252800
The reverse of 20406505 is 50560402
Previous prime number is 107
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million four hundred six thousand five hundred five
Scientific notation
2.0406505 × 10^7
Engineering notation
2.0406505 × 10^6
Prime Factorization
7 × 5 × 107 × 5449
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20406505
Product of the distinct prime numbers
The prime factorization of 20406505 is 7 × 5 × 107 × 5449.
Since it has a total of 4 prime factors.
5 , 5 , 75 , 54 , 951 , 397 , 3280 , 4508 , 1735 , 69146 , 537649 , 911260 , 3207439 , 3344706 , 64424255 , 84694800 , 616898766 , 919153154 , 2420965421 , 581438186
n×2
40813010
n×3
61219515
n×4
81626020
n×5
102032525
n÷2
10203252.5
n÷3
6802168.3333333
n÷3
5101626.25
n÷5
4081301
n2
416425446315025
n3
8.4977879523548E+21
n4
1.7341015233867E+29
n5
3.5386951407498E+36
2 √n
4517.3559744612
3 √n
273.26848137542
4 √n
67.2112786254
5 √n
28.970348926215
1 , 5 , 7 , 35 , 107 , 535 , 749 , 3745 , 5449 , 27245 , 38143 , 190715 , 583043 , 2915215 , 4081301 , 20406505
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20406504
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20406505 can be divided by 16 positive divisors.
The sum of these divisors (counting 20406505) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101110110000011101001
3
Ternary
1102101202110111
4
Quaternary
1031312003221
5
Quinary
20211002010
6
Senary
2005214321
8
Octal
115660351
10
Decimal
20406505
12
Duodecimal
6a013a1
16
Hexadecimal
13760e9
20
Vigesimal
67ag55
36
Base36
c5drd
md5
1fb62054a2dd1e6035c6e01f7ec5cada
sha1
4495f6eceb983e583395c4d0d11924a66786ad37
sha256
cf6e06ad1cbd305d6304bde471497d1a0f3e7da7e2f4dbcd56a9ffb26d345309
sha512
293c4ae2b30db4962eef10e0280adda933f68414b6f2624b1b60eabe66384b67c534fc2a21978fb6960c708aef952f68cefea263142b71effb0ecd0be46f1e9c
ripemd-160
c8bc6048ffc76e817414eb8e986607620fac5299
Diameter
40813010
Circumference
128217852.38689
Area
1.3082391229111E+15
Volume
3.5595450937176E+22
Surface area
5.2329564916445E+15
Circumference
128217852.38689
Perimeter
81626020
Area
416425446315025
Diagonal
28859156.131634
Surface area
2498552677890150
Volume
8.4977879523548E+21
Space diagonal
35345103.464908
Perimeter
61219515
Area
1.8031750764554E+14
Altitude
17672551.732454
Surface area
1.8031750764554E+14
Volume
1.0014739143659E+21
Height
9619718.7105448