19809986 is an even 8-digits composite number following 19809985
and preceding 19809987 . In scientific notation, it is written as 1.9809986 × 10^7.
The sum of its digits is 50. It has a total of 3 prime factors and 8 positive divisors.
There are 8489988 positive integers (up to 19809986) that are relatively prime to 19809986.
19809986 has 8 divisors, whose sum is 33960000
The reverse of 19809986 is 68990891
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 50
Digital Root 5
Name
nineteen million eight hundred nine thousand nine hundred eighty-six
Scientific notation
1.9809986 × 10^7
Engineering notation
1.9809986 × 10^6
Prime Factorization
2 × 7 × 1414999
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
19809986
Product of the distinct prime numbers
The prime factorization of 19809986 is 2 × 7 × 1414999.
Since it has a total of 3 prime factors.
5 , 7 , 79 , 89 , 856 , 543 , 4571 , 9118 , 3647 , 16874 , 848887 , 96396 , 335265 , 915683 , 65603520 , 92772657 , 479346587 , 667357586 , 6963095982 , 3751855835
n×2
39619972
n×3
59429958
n×4
79239944
n×5
99049930
n÷2
9904993
n÷3
6603328.6666667
n÷3
4952496.5
n÷5
3961997.2
n2
392435545320196
n3
7.7741426586954E+21
n4
1.5400565723076E+29
n5
3.0508499136621E+36
2 √n
4450.8410441174
3 √n
270.57939592497
4 √n
66.714623914981
5 √n
28.798961929916
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
-19809985
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 19809986 can be divided by 8 positive divisors.
The sum of these divisors (counting 19809986) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001011100100011011000010
3
Ternary
1101021110012012
4
Quaternary
1023210123002
5
Quinary
20032404421
6
Senary
1544332522
8
Octal
113443302
10
Decimal
19809986
12
Duodecimal
6774142
16
Hexadecimal
12e46c2
20
Vigesimal
63g4j6
36
Base36
bslhe
md5
403107f2d6d98f56f74bbbe36fcad390
sha1
8048242b5ca77f01c16661b6d8bfdfccb2067f36
sha256
5a239ba718f524c4063e354fef074b5559af4ff59cd7fd74d5d1a31d8840de8b
sha512
c4a9eeea3ae67b84214b845a2d7691a02b95aab3cdf0af0e9fbc78b49a5b899c4d040ee9f926e084d04e86af13571e359fcf0aaacce919293e094c1f0c259785
ripemd-160
2e9449b24084b05a0e111ab05397b926e5370617
Diameter
39619972
Circumference
124469812.97063
Area
1.2328726261854E+15
Volume
3.2564252619356E+22
Surface area
4.9314905047417E+15
Circumference
124469812.97063
Perimeter
79239944
Area
392435545320196
Diagonal
28015550.871621
Surface area
2354613271921176
Volume
7.7741426586954E+21
Space diagonal
34311902.249228
Perimeter
59429958
Area
1.6992957579764E+14
Altitude
17155951.124614
Surface area
1.6992957579764E+14
Volume
9.1619149864586E+20
Height
9338516.957207