20681631 is an odd 8-digits composite number following 20681630
and preceding 20681632 . In scientific notation, it is written as 2.0681631 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 13300416 positive integers (up to 20681631) that are relatively prime to 20681631.
20681631 has 16 divisors, whose sum is 23803200
The reverse of 20681631 is 13618602
Previous prime number is 173
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million six hundred eighty-one thousand six hundred thirty-one
Scientific notation
2.0681631 × 10^7
Engineering notation
2.0681631 × 10^6
Prime Factorization
9 × 37 × 173 × 359
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20681631
Product of the distinct prime numbers
The prime factorization of 20681631 is 9 × 37 × 173 × 359.
Since it has a total of 4 prime factors.
7 , 2 , 65 , 20 , 965 , 197 , 8281 , 3366 , 91507 , 4504 , 404099 , 963522 , 8370392 , 3284502 , 44433314 , 3377651 , 446796337 , 891822950 , 4564241091 , 8758550408
n×2
41363262
n×3
62044893
n×4
82726524
n×5
103408155
n÷2
10340815.5
n÷3
6893877
n÷3
5170407.75
n÷5
4136326.2
n2
427729860820161
n3
8.8461511491639E+21
n4
1.8295283383723E+29
n5
3.783762999826E+36
2 √n
4547.7061250701
3 √n
274.49109629018
4 √n
67.436682340326
5 √n
29.0480482337
1 , 9 , 37 , 173 , 333 , 359 , 1557 , 3231 , 6401 , 13283 , 57609 , 62107 , 119547 , 558963 , 2297959 , 20681631
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20681630
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20681631 can be divided by 16 positive divisors.
The sum of these divisors (counting 20681631) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110111001001110011111
3
Ternary
1102220201212100
4
Quaternary
1032321032133
5
Quinary
20243303011
6
Senary
2015140143
8
Octal
116711637
10
Decimal
20681631
12
Duodecimal
6b14653
16
Hexadecimal
13b939f
20
Vigesimal
69541b
36
Base36
cba1r
md5
f2f93d5ab1a6d25aaeb9ff55f408638c
sha1
a56f994c43eeb664ca6199f398894e0fc4b27bbe
sha256
4e80c2f1e9d41b0014529d524ed94df61eb34e719fae3e61dc8163560a9729f2
sha512
5de32ab871881b00fc12a321a00dc060c5250154d805a2e2d4ec2772fab1c30f9891abfb211d31fe3f37f941b38245ed9b858aa8471593f9189563b40bfc53ca
ripemd-160
25df803bb3e580a53d510a2a4128dc497fed407c
Diameter
41363262
Circumference
129946520.02771
Area
1.3437529884736E+15
Volume
3.7054671283678E+22
Surface area
5.3750119538944E+15
Circumference
129946520.02771
Perimeter
82726524
Area
427729860820161
Diagonal
29248243.052196
Surface area
2566379164920966
Volume
8.8461511491639E+21
Space diagonal
35821635.675392
Perimeter
62044893
Area
1.8521246271372E+14
Altitude
17910817.837696
Surface area
1.8521246271372E+14
Volume
1.0425289108292E+21
Height
9749414.3507319