20169821 is an odd 8-digits composite number following 20169820
and preceding 20169822 . In scientific notation, it is written as 2.0169821 × 10^7.
The sum of its digits is 29. It has a total of 4 prime factors and 12 positive divisors.
There are 17122392 positive integers (up to 20169821) that are relatively prime to 20169821.
20169821 has 12 divisors, whose sum is 23688288
The reverse of 20169821 is 12896102
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million one hundred sixty-nine thousand eight hundred twenty-one
Scientific notation
2.0169821 × 10^7
Engineering notation
2.0169821 × 10^6
Prime Factorization
107 × 7 × 7 × 3847
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2881403
Product of the distinct prime numbers
The prime factorization of 20169821 is 107 × 7 × 7 × 3847.
Since it has a total of 4 prime factors.
5 , 2 , 92 , 8 , 961 , 625 , 1178 , 1314 , 66637 , 29220 , 215108 , 395086 , 2049978 , 7629087 , 40781556 , 39172598 , 953778916 , 917933342 , 4254468266 , 6118430396
n×2
40339642
n×3
60509463
n×4
80679284
n×5
100849105
n÷2
10084910.5
n÷3
6723273.6666667
n÷3
5042455.25
n÷5
4033964.2
n2
406821679172041
n3
8.2055204478195E+21
n4
1.6550387864436E+29
n5
3.3381836070624E+36
2 √n
4491.0823862405
3 √n
272.20787256182
4 √n
67.015538394021
5 √n
28.902832684072
1 , 7 , 49 , 107 , 749 , 3847 , 5243 , 26929 , 188503 , 411629 , 2881403 , 20169821
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20169820
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20169821 can be divided by 12 positive divisors.
The sum of these divisors (counting 20169821) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100111100010001011101
3
Ternary
1101221201210102
4
Quaternary
1030330101131
5
Quinary
20130413241
6
Senary
2000150445
8
Octal
114742135
10
Decimal
20169821
12
Duodecimal
6908425
16
Hexadecimal
133c45d
20
Vigesimal
6614b1
36
Base36
c0b4t
md5
40be70d447d36f3585c10302f135529f
sha1
94f4c1350321f0ca7c0d6824c28feee187bfd515
sha256
7538bc4edd03a3a46e1965819fc5fd7a53ac4fcc46593bdeb0c8bb41d7372bef
sha512
a7d46356c489240066b4c83bb40bec261aad8156f786531b4eb47dc933501c4b15b0459faf5d8406b01c0ad91505531305416548b064136e524a914c9fb9c059
ripemd-160
297364bb6787b14b3760addb25714627878772d7
Diameter
40339642
Circumference
126730722.95564
Area
1.2780679986079E+15
Volume
3.4371203677001E+22
Surface area
5.1122719944318E+15
Circumference
126730722.95564
Perimeter
80679284
Area
406821679172041
Diagonal
28524434.408838
Surface area
2440930075032246
Volume
8.2055204478195E+21
Space diagonal
34935154.75157
Perimeter
60509463
Area
1.7615895448662E+14
Altitude
17467577.375785
Surface area
1.7615895448662E+14
Volume
9.6702985863634E+20
Height
9508144.8029459