20404639 is an odd 8-digits composite number following 20404638
and preceding 20404640 . In scientific notation, it is written as 2.0404639 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 20379024 positive integers (up to 20404639) that are relatively prime to 20404639.
20404639 has 4 divisors, whose sum is 20430256
The reverse of 20404639 is 93640402
Previous prime number is 823
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million four hundred four thousand six hundred thirty-nine
Scientific notation
2.0404639 × 10^7
Engineering notation
2.0404639 × 10^6
Prime Factorization
823 × 24793
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20404639
Product of the distinct prime numbers
The prime factorization of 20404639 is 823 × 24793.
Since it has a total of 2 prime factors.
9 , 8 , 13 , 27 , 225 , 99 , 1086 , 3300 , 90052 , 66527 , 419088 , 998999 , 948582 , 2677951 , 66903311 , 78553969 , 156292474 , 370656090 , 7233276896 , 9393747650
n×2
40809278
n×3
61213917
n×4
81618556
n×5
102023195
n÷2
10202319.5
n÷3
6801546.3333333
n÷3
5101159.75
n÷5
4080927.8
n2
416349292720321
n3
8.4954570158635E+21
n4
1.7334673354871E+29
n5
3.5370775198906E+36
2 √n
4517.1494329942
3 √n
273.26015176794
4 √n
67.209742098852
5 √n
28.969819088808
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
-20404638
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 20404639 can be divided by 4 positive divisors.
The sum of these divisors (counting 20404639) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101110101100110011111
3
Ternary
1102101122220101
4
Quaternary
1031311212133
5
Quinary
20210422024
6
Senary
2005201531
8
Octal
115654637
10
Decimal
20404639
12
Duodecimal
6a002a7
16
Hexadecimal
137599f
20
Vigesimal
67abbj
36
Base36
c5cbj
md5
6f7d846708360d4aa885bad8160dafca
sha1
e9b4bed186b73a28f61d08ec1ad96d6d624e5ede
sha256
114219e507fa1ffa05433f2c2688a752b794dad35a37d01f1d2e8304715f5bf7
sha512
0e57155a6409a57d3bb0a82b9ab878ac5fae8378d13a77b0c8249460ca5a8a92f0fac29467ec39c45ae485b54a6995012203291545457a6beb77b181b3ec26c2
ripemd-160
eac408e1e6e4356c081ab17920ddc04854599828
Diameter
40809278
Circumference
128206127.9631
Area
1.3079998793375E+15
Volume
3.5585687133233E+22
Surface area
5.2319995173499E+15
Circumference
128206127.9631
Perimeter
81618556
Area
416349292720321
Diagonal
28856517.209127
Surface area
2498095756321926
Volume
8.4954570158635E+21
Space diagonal
35341871.458101
Perimeter
61213917
Area
1.8028453217174E+14
Altitude
17670935.729051
Surface area
1.8028453217174E+14
Volume
1.001199210866E+21
Height
9618839.069709