20681678 is an even 8-digits composite number following 20681677
and preceding 20681679 . In scientific notation, it is written as 2.0681678 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 10340838 positive integers (up to 20681678) that are relatively prime to 20681678.
20681678 has 4 divisors, whose sum is 31022520
The reverse of 20681678 is 87618602
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million six hundred eighty-one thousand six hundred seventy-eight
Scientific notation
2.0681678 × 10^7
Engineering notation
2.0681678 × 10^6
Prime Factorization
2 × 10340839
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20681678
Product of the distinct prime numbers
The prime factorization of 20681678 is 2 × 10340839.
Since it has a total of 2 prime factors.
1 , 8 , 47 , 91 , 15 , 651 , 3807 , 8280 , 12673 , 84981 , 402912 , 891721 , 47296 , 9403012 , 19602339 , 28585894 , 926705323 , 399835852 , 9846703985 , 2725073467
n×2
41363356
n×3
62045034
n×4
82726712
n×5
103408390
n÷2
10340839
n÷3
6893892.6666667
n÷3
5170419.5
n÷5
4136335.6
n2
427731804895684
n3
8.8462114592114E+21
n4
1.8295449691932E+29
n5
3.7838059939374E+36
2 √n
4547.7112925075
3 √n
274.49130422142
4 √n
67.436720653569
5 √n
29.048061436305
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20681677
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20681678 can be divided by 4 positive divisors.
The sum of these divisors (counting 20681678) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110111001001111001110
3
Ternary
1102220201221002
4
Quaternary
1032321033032
5
Quinary
20243303203
6
Senary
2015140302
8
Octal
116711716
10
Decimal
20681678
12
Duodecimal
6b14692
16
Hexadecimal
13b93ce
20
Vigesimal
69543i
36
Base36
cba32
md5
c2e8d3398401b2df27822b0ac54e4740
sha1
8cdb49c8433de07f2dde84531a358a4ad9566b65
sha256
540ab5bfcd40b67670b6ebc2b358a176cc9556f7d39e3571ba219c5ad0d96613
sha512
dfdd68b523cd5f3e31e717a3e96f235831b694daf69d8e0495db069bf72c27216fe9238a649c945f8da8608edcfc08baa7a69ec08bef7a1585b24e9e0a1ef5ec
ripemd-160
a8f1df2edec4e091828b3c63a4d0ad9c9fdbd403
Diameter
41363356
Circumference
129946815.33742
Area
1.343759095967E+15
Volume
3.7054923909814E+22
Surface area
5.3750363838679E+15
Circumference
129946815.33742
Perimeter
82726712
Area
427731804895684
Diagonal
29248309.520233
Surface area
2566390829374104
Volume
8.8462114592114E+21
Space diagonal
35821717.081779
Perimeter
62045034
Area
1.8521330452312E+14
Altitude
17910858.54089
Surface area
1.8521330452312E+14
Volume
1.0425360184364E+21
Height
9749436.5067444