19985209 is an odd 8-digits prime number following 19985208
and preceding 19985210 . In scientific notation, it is written as 1.9985209 × 10^7.
The sum of its digits is 43. It has a total of 1 prime factors and 2 positive divisors.
There are 19985208 positive integers (up to 19985209) that are relatively prime to 19985209.
19985209 has 2 divisors, whose sum is 19985210
The reverse of 19985209 is 90258991
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
nineteen million nine hundred eighty-five thousand two hundred nine
Scientific notation
1.9985209 × 10^7
Engineering notation
1.9985209 × 10^6
Prime Factorization
19985209
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
19985209
Product of the distinct prime numbers
The prime factorization of 19985209 is 19985209.
Since it has a total of 1 prime factors.
3 , 8 , 86 , 89 , 499 , 813 , 6082 , 5547 , 79849 , 20390 , 831982 , 662000 , 4509829 , 3337089 , 68612378 , 40304509 , 833378760 , 582670251 , 5197921436 , 5102536188
n×2
39970418
n×3
59955627
n×4
79940836
n×5
99926045
n÷2
9992604.5
n÷3
6661736.3333333
n÷3
4996302.25
n÷5
3997041.8
n2
399408578773681
n3
7.982263923185E+21
n4
1.5952721279801E+29
n5
3.1881846889557E+36
2 √n
4470.4819650682
3 √n
271.37483023879
4 √n
66.861662894877
5 √n
28.849729060223
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
19985210
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
9992605
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4470.482076913
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.999999899926
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19985209 can be divided by 2 positive divisors.
The sum of these divisors (counting 19985209) is 19985210, the average is 9992605.
Base
System
Value
2
Binary
1001100001111001100111001
3
Ternary
1101121100112221
4
Quaternary
1030033030321
5
Quinary
20104011314
6
Senary
1552204041
8
Octal
114171471
10
Decimal
19985209
12
Duodecimal
6839621
16
Hexadecimal
130f339
20
Vigesimal
64i309
36
Base36
bwcop
md5
ce2b03b38ad441f4329c39eed4483dfa
sha1
ed9b1873a4946003f629258b096648621844af49
sha256
621e9b75e5ef87f6fcfcd09ad424707433abe99bb99912acdce541a9f3b31785
sha512
e756ae12a9525637f7e9fee70c6bd909690748c9d5e65b78c114387881b01fca147680c1e2212fc860281ef6810b14afa0ca60c61da7ed10523483694705f34f
ripemd-160
015c2bca57c493b7556a6d07ec139268b116be6f
Diameter
39970418
Circumference
125570771.54971
Area
1.2547790568561E+15
Volume
3.3436028933457E+22
Surface area
5.0191162274245E+15
Circumference
125570771.54971
Perimeter
79940836
Area
399408578773681
Diagonal
28263353.614661
Surface area
2396451472642086
Volume
7.982263923185E+21
Space diagonal
34615397.387883
Perimeter
59955627
Area
1.7294898785372E+14
Altitude
17307698.693941
Surface area
1.7294898785372E+14
Volume
9.4071882488414E+20
Height
9421117.8715536