19809909 is an odd 8-digits composite number following 19809908
and preceding 19809910 . In scientific notation, it is written as 1.9809909 × 10^7.
The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors.
There are 11276640 positive integers (up to 19809909) that are relatively prime to 19809909.
19809909 has 8 divisors, whose sum is 22674048
The reverse of 19809909 is 90990891
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
nineteen million eight hundred nine thousand nine hundred nine
Scientific notation
1.9809909 × 10^7
Engineering notation
1.9809909 × 10^6
Prime Factorization
3447 × 7 × 821
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
19809909
Product of the distinct prime numbers
The prime factorization of 19809909 is 3447 × 7 × 821.
Since it has a total of 3 prime factors.
6 , 2 , 95 , 50 , 880 , 643 , 7559 , 5852 , 93013 , 75503 , 677421 , 392678 , 7397913 , 1865452 , 55035377 , 76519905 , 908778218 , 846371865 , 8311726747 , 5756817002
n×2
39619818
n×3
59429727
n×4
79239636
n×5
99049545
n÷2
9904954.5
n÷3
6603303
n÷3
4952477.25
n÷5
3961981.8
n2
392432494588281
n3
7.7740520064368E+21
n4
1.5400326280878E+29
n5
3.050790621945E+36
2 √n
4450.8323940584
3 √n
270.57904535025
4 √n
66.714559086143
5 √n
28.798939541979
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
-19809908
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 19809909 can be divided by 8 positive divisors.
The sum of these divisors (counting 19809909) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001011100100011001110101
3
Ternary
1101021110002100
4
Quaternary
1023210121311
5
Quinary
20032404114
6
Senary
1544332313
8
Octal
113443165
10
Decimal
19809909
12
Duodecimal
6774099
16
Hexadecimal
12e4675
20
Vigesimal
63g4f9
36
Base36
bslf9
md5
0f34b72a28a775855231e30bef45e04d
sha1
e9c12d48afa3bd6a236cfee04104cb9ec0087f18
sha256
e3b7a2c9a479edc0e212c5f0e508d929ad050045c1af2d0c306d3e710fdf63cf
sha512
ac1c01d5abf6e7f1194bcd7b336e98792cbd459a05375dbcb1bb3bcf31c6696dac41b9a78aec9228eb75f07bf4721f07bf2af00c14f750a8d17d51320e30e4ba
ripemd-160
6483a749b26607029486408b9352dfabaf62cc9d
Diameter
39619818
Circumference
124469329.16536
Area
1.2328630420285E+15
Volume
3.2563872896063E+22
Surface area
4.9314521681138E+15
Circumference
124469329.16536
Perimeter
79239636
Area
392432494588281
Diagonal
28015441.977177
Surface area
2354594967529686
Volume
7.7740520064368E+21
Space diagonal
34311768.881316
Perimeter
59429727
Area
1.6992825479198E+14
Altitude
17155884.440658
Surface area
1.6992825479198E+14
Volume
9.1618081517473E+20
Height
9338480.6590589