20681839 is an odd 8-digits composite number following 20681838
and preceding 20681840 . In scientific notation, it is written as 2.0681839 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 20080536 positive integers (up to 20681839) that are relatively prime to 20681839.
20681839 has 8 divisors, whose sum is 21288960
The reverse of 20681839 is 93818602
Previous prime number is 179
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty million six hundred eighty-one thousand eight hundred thirty-nine
Scientific notation
2.0681839 × 10^7
Engineering notation
2.0681839 × 10^6
Prime Factorization
43 × 179 × 2687
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20681839
Product of the distinct prime numbers
The prime factorization of 20681839 is 43 × 179 × 2687.
Since it has a total of 3 prime factors.
7 , 2 , 40 , 37 , 331 , 433 , 1303 , 1383 , 83367 , 13909 , 800137 , 46507 , 3563778 , 9849966 , 50151373 , 2341887 , 607787592 , 674629152 , 2189535731 , 1966767996
n×2
41363678
n×3
62045517
n×4
82727356
n×5
103409195
n÷2
10340919.5
n÷3
6893946.3333333
n÷3
5170459.75
n÷5
4136367.8
n2
427738464421921
n3
8.8464180552814E+21
n4
1.8296019394602E+29
n5
3.7839532746004E+36
2 √n
4547.7289936847
3 √n
274.49201649414
4 √n
67.436851896309
5 √n
29.048106662068
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
-20681838
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 20681839 can be divided by 8 positive divisors.
The sum of these divisors (counting 20681839) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110111001010001101111
3
Ternary
1102220202011001
4
Quaternary
1032321101233
5
Quinary
20243304324
6
Senary
2015141131
8
Octal
116712157
10
Decimal
20681839
12
Duodecimal
6b147a7
16
Hexadecimal
13b946f
20
Vigesimal
6954bj
36
Base36
cba7j
md5
2eb13ada160103b06a74cd57cfc9fad2
sha1
30c21c09ff221b2ed40b49b232b91ae1d1fa9c9d
sha256
1157c33e86592b509556177aabd41728cad5a7eb69e6fef45ad85a319b1cfcd1
sha512
c457a8a3c7b92f6e0123b34c906040bdc7902a21bb228d50fd91a2a2e4056de0a791c9a456e409366c4eadeae1160a60556b48a1aa913485920422c9b2ec8761
ripemd-160
fc1ea793f632b5621c44985e9e3204218688d912
Diameter
41363678
Circumference
129947826.93025
Area
1.3437800174857E+15
Volume
3.7055789297408E+22
Surface area
5.3751200699427E+15
Circumference
129947826.93025
Perimeter
82727356
Area
427738464421921
Diagonal
29248537.208617
Surface area
2566430786531526
Volume
8.8464180552814E+21
Space diagonal
35821995.94196
Perimeter
62045517
Area
1.8521618818256E+14
Altitude
17910997.97098
Surface area
1.8521618818256E+14
Volume
1.0425603660168E+21
Height
9749512.4028723