20681642 is an even 8-digits composite number following 20681641
and preceding 20681643 . In scientific notation, it is written as 2.0681642 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 10224544 positive integers (up to 20681642) that are relatively prime to 20681642.
20681642 has 8 divisors, whose sum is 31371300
The reverse of 20681642 is 24618602
Previous prime number is 89
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million six hundred eighty-one thousand six hundred forty-two
Scientific notation
2.0681642 × 10^7
Engineering notation
2.0681642 × 10^6
Prime Factorization
2 × 89 × 116189
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20681642
Product of the distinct prime numbers
The prime factorization of 20681642 is 2 × 89 × 116189.
Since it has a total of 3 prime factors.
4 , 5 , 10 , 82 , 700 , 105 , 5931 , 7595 , 17423 , 34674 , 552551 , 478247 , 4380925 , 8760160 , 58416276 , 58459585 , 790159747 , 388439224 , 4541327660 , 4169431718
n×2
41363284
n×3
62044926
n×4
82726568
n×5
103408210
n÷2
10340821
n÷3
6893880.6666667
n÷3
5170410.5
n÷5
4136328.4
n2
427730315816164
n3
8.8461652642568E+21
n4
1.829532230682E+29
n5
3.7837730622426E+36
2 √n
4547.7073344709
3 √n
274.49114495496
4 √n
67.436691307261
5 √n
29.048051323673
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
-20681641
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 20681642 can be divided by 8 positive divisors.
The sum of these divisors (counting 20681642) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110111001001110101010
3
Ternary
1102220201212202
4
Quaternary
1032321032222
5
Quinary
20243303032
6
Senary
2015140202
8
Octal
116711652
10
Decimal
20681642
12
Duodecimal
6b14662
16
Hexadecimal
13b93aa
20
Vigesimal
695422
36
Base36
cba22
md5
a83264da4036ce07d6e543f1d4b70af2
sha1
2136b342b92c7dd88c79f6fbc49438e6ce0ded88
sha256
89d78b46ae1f3856c0bf12f97ccb2f627fc8df222cb9f08754ab65441e9f8cba
sha512
f05d2a1ed5a3c53842b67bfeeacd22850b48017d8091f200b4eaff45e24b4a0f831b6e82dc4b9c48e7d4be82f1daa14e3193c55d6b783689d91b83d06d598fa6
ripemd-160
6c67106daad03f366237ce31bb8b38b17c96d32a
Diameter
41363284
Circumference
129946589.14275
Area
1.3437544178857E+15
Volume
3.7054730408841E+22
Surface area
5.3750176715428E+15
Circumference
129946589.14275
Perimeter
82726568
Area
427730315816164
Diagonal
29248258.608545
Surface area
2566381894896984
Volume
8.8461652642568E+21
Space diagonal
35821654.72795
Perimeter
62044926
Area
1.8521265973277E+14
Altitude
17910827.363975
Surface area
1.8521265973277E+14
Volume
1.0425305743088E+21
Height
9749419.5361817