20681668 is an even 8-digits composite number following 20681667
and preceding 20681669 . In scientific notation, it is written as 2.0681668 × 10^7.
The sum of its digits is 37. It has a total of 5 prime factors and 24 positive divisors.
There are 8623584 positive integers (up to 20681668) that are relatively prime to 20681668.
20681668 has 24 divisors, whose sum is 42483392
The reverse of 20681668 is 86618602
Previous prime number is 37
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty million six hundred eighty-one thousand six hundred sixty-eight
Scientific notation
2.0681668 × 10^7
Engineering notation
2.0681668 × 10^6
Prime Factorization
2 × 2 × 7 × 37 × 19963
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10340834
Product of the distinct prime numbers
The prime factorization of 20681668 is 2 × 2 × 7 × 37 × 19963.
Since it has a total of 5 prime factors.
5 , 2 , 52 , 74 , 679 , 150 , 9146 , 8565 , 34742 , 56265 , 606406 , 849074 , 2478359 , 7814650 , 84946289 , 626575 , 315409162 , 580774918 , 6539886447 , 2099967100
n×2
41363336
n×3
62045004
n×4
82726672
n×5
103408340
n÷2
10340834
n÷3
6893889.3333333
n÷3
5170417
n÷5
4136333.6
n2
427731391262224
n3
8.8461986272634E+21
n4
1.8295414307112E+29
n5
3.7837968462214E+36
2 √n
4547.7101930532
3 √n
274.49125998076
4 √n
67.436712501821
5 √n
29.048058627242
1 , 2 , 4 , 7 , 14 , 28 , 37 , 74 , 148 , 259 , 518 , 1036 , 19963 , 39926 , 79852 , 139741 , 279482 , 558964 , 738631 , 1477262 , 2954524 , 5170417 , 10340834 , 20681668
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20681667
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20681668 can be divided by 24 positive divisors.
The sum of these divisors (counting 20681668) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001110111001001111000100
3
Ternary
1102220201220201
4
Quaternary
1032321033010
5
Quinary
20243303133
6
Senary
2015140244
8
Octal
116711704
10
Decimal
20681668
12
Duodecimal
6b14684
16
Hexadecimal
13b93c4
20
Vigesimal
695438
36
Base36
cba2s
md5
5fa232b3c949268a5e00482a9a957b62
sha1
98369764e9cb274f9d8534129da6a7422bb0c3c6
sha256
6545c41e93099c3815c5bfeeefc9cde333e22065b7831483383ee59e06adff24
sha512
eee7fb0302afcbcc2448f91944f6724d3231bdfc72fd9e66e671b67e2decb64e74cfeb695d6781272559ee3d6944ff4dd6d77e1a97e8d74c74f22494283b2c54
ripemd-160
195cb66bfd3882f3be6016cc519fba8584d00326
Diameter
41363336
Circumference
129946752.50557
Area
1.3437577964991E+15
Volume
3.7054870159476E+22
Surface area
5.3750311859966E+15
Circumference
129946752.50557
Perimeter
82726672
Area
427731391262224
Diagonal
29248295.378098
Surface area
2566388347573344
Volume
8.8461986272634E+21
Space diagonal
35821699.761271
Perimeter
62045004
Area
1.8521312541457E+14
Altitude
17910849.880636
Surface area
1.8521312541457E+14
Volume
1.0425345061768E+21
Height
9749431.7926992