20681646 is an even 8-digits composite number following 20681645
and preceding 20681647 . In scientific notation, it is written as 2.0681646 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 6594104 positive integers (up to 20681646) that are relatively prime to 20681646.
20681646 has 16 divisors, whose sum is 43161984
The reverse of 20681646 is 64618602
Previous prime number is 23
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million six hundred eighty-one thousand six hundred forty-six
Scientific notation
2.0681646 × 10^7
Engineering notation
2.0681646 × 10^6
Prime Factorization
2 × 3 × 23 × 149867
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20681646
Product of the distinct prime numbers
The prime factorization of 20681646 is 2 × 3 × 23 × 149867.
Since it has a total of 4 prime factors.
10 , 8 , 40 , 99 , 455 , 833 , 2890 , 2174 , 5135 , 60138 , 366885 , 851946 , 3168322 , 4269953 , 2014800 , 40594479 , 380859987 , 331205079 , 8301467442 , 5686541176
n×2
41363292
n×3
62044938
n×4
82726584
n×5
103408230
n÷2
10340823
n÷3
6893882
n÷3
5170411.5
n÷5
4136329.2
n2
427730481269316
n3
8.8461703970216E+21
n4
1.8295336460688E+29
n5
3.7837767213084E+36
2 √n
4547.7077742529
3 √n
274.49116265125
4 √n
67.436694567964
5 √n
29.0480524473
1 , 2 , 3 , 6 , 23 , 46 , 69 , 138 , 149867 , 299734 , 449601 , 899202 , 3446941 , 6893882 , 10340823 , 20681646
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
-20681645
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 20681646 can be divided by 16 positive divisors.
The sum of these divisors (counting 20681646) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110111001001110101110
3
Ternary
1102220201212220
4
Quaternary
1032321032232
5
Quinary
20243303041
6
Senary
2015140210
8
Octal
116711656
10
Decimal
20681646
12
Duodecimal
6b14666
16
Hexadecimal
13b93ae
20
Vigesimal
695426
36
Base36
cba26
md5
8b20a3b75535151d7c770021c40b6ca8
sha1
455be3e3524099424b96f4704ff876e335728be1
sha256
d81a030a83719d7ef2f06ee0af0da4833f96ad2503a2e3a14dd2d1a6e444f40f
sha512
a8ea1abc061b4d48914d64b14c2e701e674f5c741b6a7e49782b33ac0af6318d74b7c83e359cb92f435c659490fe9b130d58498a8ab150fdb56650e12d9cf89b
ripemd-160
1f71f45c4edd86fed1dea89f6393007ae79eb278
Diameter
41363292
Circumference
129946614.27549
Area
1.3437549376721E+15
Volume
3.7054751908916E+22
Surface area
5.3750197506884E+15
Circumference
129946614.27549
Perimeter
82726584
Area
427730481269316
Diagonal
29248264.265399
Surface area
2566382887615896
Volume
8.8461703970216E+21
Space diagonal
35821661.656154
Perimeter
62044938
Area
1.8521273137609E+14
Altitude
17910830.828077
Surface area
1.8521273137609E+14
Volume
1.0425311792109E+21
Height
9749421.4217998