20197809 is an odd 8-digits composite number following 20197808
and preceding 20197810 . In scientific notation, it is written as 2.0197809 × 10^7.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 13339728 positive integers (up to 20197809) that are relatively prime to 20197809.
20197809 has 8 divisors, whose sum is 21141120
The reverse of 20197809 is 90879102
Previous prime number is 109
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million one hundred ninety-seven thousand eight hundred nine
Scientific notation
2.0197809 × 10^7
Engineering notation
2.0197809 × 10^6
Prime Factorization
27 × 109 × 6863
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20197809
Product of the distinct prime numbers
The prime factorization of 20197809 is 27 × 109 × 6863.
Since it has a total of 3 prime factors.
3 , 5 , 17 , 96 , 460 , 107 , 1801 , 8735 , 66131 , 80768 , 313015 , 110436 , 5939225 , 9958009 , 75400643 , 31735069 , 408927081 , 804610088 , 7075167152 , 337787077
n×2
40395618
n×3
60593427
n×4
80791236
n×5
100989045
n÷2
10098904.5
n÷3
6732603
n÷3
5049452.25
n÷5
4039561.8
n2
407951488400481
n3
8.2397262439786E+21
n4
1.6642441688817E+29
n5
3.3614085852436E+36
2 √n
4494.1972586881
3 √n
272.3337211877
4 √n
67.038774292853
5 √n
28.910849451886
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
-20197808
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 20197809 can be divided by 8 positive divisors.
The sum of these divisors (counting 20197809) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101000011000110110001
3
Ternary
1102000011012000
4
Quaternary
1031003012301
5
Quinary
20132312214
6
Senary
2000524213
8
Octal
115030661
10
Decimal
20197809
12
Duodecimal
6920669
16
Hexadecimal
13431b1
20
Vigesimal
664ea9
36
Base36
c0wq9
md5
4377b8a7f0ab08f6a043dbc2dbf57762
sha1
abe646ae6fde05d535ff9d85f38d4562361f036a
sha256
df57b1c6de739d2f65e4dc488977bb767719967e9204cb111cf8746ea29367a7
sha512
cf05b00dda6d897e930e106cd90414075e34a5cdd16bd627ebb2eaa679157fd360a8c5f5dd4a0383f63453452d11b4fdc153c6dd68ef4f72b980daedff3b072e
ripemd-160
db34e332431f9c060b85cfd211e6b3650892f7e0
Diameter
40395618
Circumference
126906576.74602
Area
1.28161739898E+15
Volume
3.4514484580899E+22
Surface area
5.1264695959199E+15
Circumference
126906576.74602
Perimeter
80791236
Area
407951488400481
Diagonal
28564015.418021
Surface area
2447708930402886
Volume
8.2397262439786E+21
Space diagonal
34983631.389572
Perimeter
60593427
Area
1.7664817623324E+14
Altitude
17491815.694786
Surface area
1.7664817623324E+14
Volume
9.7106105037301E+20
Height
9521338.4726738