20490639 is an odd 8-digits composite number following 20490638
and preceding 20490640 . In scientific notation, it is written as 2.0490639 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 12532608 positive integers (up to 20490639) that are relatively prime to 20490639.
20490639 has 16 divisors, whose sum is 29602272
The reverse of 20490639 is 93609402
Previous prime number is 173
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million four hundred ninety thousand six hundred thirty-nine
Scientific notation
2.0490639 × 10^7
Engineering notation
2.0490639 × 10^6
Prime Factorization
3 × 13 × 173 × 3037
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20490639
Product of the distinct prime numbers
The prime factorization of 20490639 is 3 × 13 × 173 × 3037.
Since it has a total of 4 prime factors.
8 , 1 , 59 , 42 , 845 , 349 , 6911 , 5792 , 93771 , 45350 , 210862 , 469914 , 8837070 , 3256453 , 36731005 , 30843993 , 881523183 , 474619225 , 702671316 , 3978811364
n×2
40981278
n×3
61471917
n×4
81962556
n×5
102453195
n÷2
10245319.5
n÷3
6830213
n÷3
5122659.75
n÷5
4098127.8
n2
419866286628321
n3
8.6033285075715E+21
n4
1.7628769864706E+29
n5
3.6122475931176E+36
2 √n
4526.6587015148
3 √n
273.64351939741
4 √n
67.280448136995
5 √n
28.994198003773
1 , 3 , 13 , 39 , 173 , 519 , 2249 , 3037 , 6747 , 9111 , 39481 , 118443 , 525401 , 1576203 , 6830213 , 20490639
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
-20490638
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 20490639 can be divided by 16 positive divisors.
The sum of these divisors (counting 20490639) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110001010100110001111
3
Ternary
1102120000212120
4
Quaternary
1032022212033
5
Quinary
20221200024
6
Senary
2011104023
8
Octal
116124617
10
Decimal
20490639
12
Duodecimal
6a42013
16
Hexadecimal
138a98f
20
Vigesimal
6816bj
36
Base36
c76of
md5
6a4b81535b8be379a50cb89f61df1ddc
sha1
018d7534a397a69b6ab7d2416a41ede7bb2fcd01
sha256
a8df54ab4fff5b7bffd503c196fed1b3a993f00b2a8a08bf9ed053b2ca06af6c
sha512
0d3bb62cc63201dee198ca701d93b6a43c2621e0fa9371684cc27ad43b8c1655dbc79c9c852437d05e9f1b158218ef6e31433bcf1d7df7bb4c747ca669ef6f92
ripemd-160
456d6a1ba38646122d406546c3bd027f59365404
Diameter
40981278
Circumference
128746481.89952
Area
1.3190488415616E+15
Volume
3.6037538181075E+22
Surface area
5.2761953662462E+15
Circumference
128746481.89952
Perimeter
81962556
Area
419866286628321
Diagonal
28978139.575491
Surface area
2519197719769926
Volume
8.6033285075715E+21
Space diagonal
35490827.827552
Perimeter
61471917
Area
1.8180743520638E+14
Altitude
17745413.913776
Surface area
1.8180743520638E+14
Volume
1.0139119880799E+21
Height
9659379.858497