20189986 is an even 8-digits composite number following 20189985
and preceding 20189987 . In scientific notation, it is written as 2.0189986 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 9952740 positive integers (up to 20189986) that are relatively prime to 20189986.
20189986 has 8 divisors, whose sum is 30711744
The reverse of 20189986 is 68998102
Previous prime number is 71
Is Prime? no
Number parity even
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty million one hundred eighty-nine thousand nine hundred eighty-six
Scientific notation
2.0189986 × 10^7
Engineering notation
2.0189986 × 10^6
Prime Factorization
2 × 71 × 142183
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20189986
Product of the distinct prime numbers
The prime factorization of 20189986 is 2 × 71 × 142183.
Since it has a total of 3 prime factors.
2 , 1 , 13 , 85 , 230 , 348 , 1308 , 9186 , 1452 , 58195 , 288996 , 582109 , 7693244 , 8648199 , 69410638 , 45023805 , 310971046 , 623057023 , 3619045956 , 4765501591
n×2
40379972
n×3
60569958
n×4
80759944
n×5
100949930
n÷2
10094993
n÷3
6729995.3333333
n÷3
5047496.5
n÷5
4037997.2
n2
407635534680196
n3
8.2301557382957E+21
n4
1.6616672913401E+29
n5
3.3549039348814E+36
2 √n
4493.3268298667
3 √n
272.2985566175
4 √n
67.032281998055
5 √n
28.908609559199
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
-20189985
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 20189986 can be divided by 8 positive divisors.
The sum of these divisors (counting 20189986) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101000001001100100010
3
Ternary
1101222202110021
4
Quaternary
1031001030202
5
Quinary
20132034421
6
Senary
2000424054
8
Octal
115011442
10
Decimal
20189986
12
Duodecimal
691802a
16
Hexadecimal
1341322
20
Vigesimal
663ej6
36
Base36
c0qoy
md5
513180c4c305b27bbf75dedce3051850
sha1
2ac822811645787c0fe0607b55e01b461aa0657b
sha256
d4e7287965e8ae3429786e68230cb1827b6581ab15a4c5cd3be6eedacc8e3a0d
sha512
f328dc6c29acac5cf0228e2ad027049ee9617b819b44f27d228dd51731bea6e51cac2d6f6c317979b4cb1c17d43a1c0bfa1d37c643fd88386d7de40ff344bd66
ripemd-160
db755bf2e912db895abb69b3a1b348720d265d7c
Diameter
40379972
Circumference
126857423.38736
Area
1.2806248010935E+15
Volume
3.4474395740439E+22
Surface area
5.1224992043738E+15
Circumference
126857423.38736
Perimeter
80759944
Area
407635534680196
Diagonal
28552952.025323
Surface area
2445813208081176
Volume
8.2301557382957E+21
Space diagonal
34970081.556104
Perimeter
60569958
Area
1.7651136425915E+14
Altitude
17485040.778052
Surface area
1.7651136425915E+14
Volume
9.6993315546171E+20
Height
9517650.6751076