20111209 is an odd 8-digits composite number following 20111208
and preceding 20111210 . In scientific notation, it is written as 2.0111209 × 10^7.
The sum of its digits is 16. It has a total of 2 prime factors and 4 positive divisors.
There are 20027520 positive integers (up to 20111209) that are relatively prime to 20111209.
20111209 has 4 divisors, whose sum is 20194900
The reverse of 20111209 is 90211102
Previous prime number is 241
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 16
Digital Root 7
Name
twenty million one hundred eleven thousand two hundred nine
Scientific notation
2.0111209 × 10^7
Engineering notation
2.0111209 × 10^6
Prime Factorization
241 × 83449
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20111209
Product of the distinct prime numbers
The prime factorization of 20111209 is 241 × 83449.
Since it has a total of 2 prime factors.
4 , 4 , 95 , 11 , 362 , 958 , 3597 , 5671 , 37515 , 27090 , 999597 , 457521 , 8261454 , 1655186 , 84887226 , 15732900 , 464515630 , 107645663 , 8611756265 , 8967222743
n×2
40222418
n×3
60333627
n×4
80444836
n×5
100556045
n÷2
10055604.5
n÷3
6703736.3333333
n÷3
5027802.25
n÷5
4022241.8
n2
404460727441681
n3
8.1341942218717E+21
n4
1.6358848004265E+29
n5
3.2899621121301E+36
2 √n
4484.552263047
3 √n
271.94394479956
4 √n
66.96679970737
5 √n
28.88601522807
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20111208
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20111209 can be divided by 4 positive divisors.
The sum of these divisors (counting 20111209) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100101101111101101001
3
Ternary
1101211202101121
4
Quaternary
1030231331221
5
Quinary
20122024314
6
Senary
1555015241
8
Octal
114557551
10
Decimal
20111209
12
Duodecimal
689a521
16
Hexadecimal
132df69
20
Vigesimal
65di09
36
Base36
bz1wp
md5
6c8e236a0641a4d4c901689df975ad85
sha1
5f1188775495558a565f7bda1a812d8c6fe6da41
sha256
f8673adb2bcbf1933a5f39eab841eea6778f05a69795a0692760e35def16fdf2
sha512
2ab9035c20d35fb307de7fa155f49ecbe314ee7d7ffe5c92338d5bba3444ca42456a207202dc52b6263965460f60b01d7d313b19ab1921357805066b7942dc1d
ripemd-160
7cbf80db4526a0bc72e29049a628daf7bb76a618
Diameter
40222418
Circumference
126362452.89842
Area
1.2706508499964E+15
Volume
3.4072433080406E+22
Surface area
5.0826033999855E+15
Circumference
126362452.89842
Perimeter
80444836
Area
404460727441681
Diagonal
28441544.52352
Surface area
2426764364650086
Volume
8.1341942218717E+21
Space diagonal
34833635.789636
Perimeter
60333627
Area
1.7513663239881E+14
Altitude
17416817.894818
Surface area
1.7513663239881E+14
Volume
9.5862398229565E+20
Height
9480514.8411733