20402405 is an odd 8-digits composite number following 20402404
and preceding 20402406 . In scientific notation, it is written as 2.0402405 × 10^7.
The sum of its digits is 17. It has a total of 3 prime factors and 8 positive divisors.
There are 16098048 positive integers (up to 20402405) that are relatively prime to 20402405.
20402405 has 8 divisors, whose sum is 24818712
The reverse of 20402405 is 50420402
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty million four hundred two thousand four hundred five
Scientific notation
2.0402405 × 10^7
Engineering notation
2.0402405 × 10^6
Prime Factorization
5 × 73 × 55897
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20402405
Product of the distinct prime numbers
The prime factorization of 20402405 is 5 × 73 × 55897.
Since it has a total of 3 prime factors.
5 , 2 , 17 , 74 , 55 , 404 , 6378 , 8305 , 82456 , 91763 , 454217 , 636207 , 3561315 , 7729385 , 86088990 , 52898977 , 7407719 , 819394329 , 1062640520 , 4417124950
n×2
40804810
n×3
61207215
n×4
81609620
n×5
102012025
n÷2
10201202.5
n÷3
6800801.6666667
n÷3
5100601.25
n÷5
4080481
n2
416258129784025
n3
8.4926669483962E+21
n4
1.7327083061129E+29
n5
3.535141660818E+36
2 √n
4516.9021463831
3 √n
273.25017878322
4 √n
67.207902410231
5 √n
28.969184709436
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
-20402404
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 20402405 can be divided by 8 positive divisors.
The sum of these divisors (counting 20402405) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101110101000011100101
3
Ternary
1102101112211122
4
Quaternary
1031311003211
5
Quinary
20210334110
6
Senary
2005143325
8
Octal
115650345
10
Decimal
20402405
12
Duodecimal
69bab45
16
Hexadecimal
13750e5
20
Vigesimal
67a605
36
Base36
c5alh
md5
8ffde6e1fa1489ea8f7e8b50c857ac2f
sha1
2a03d3d4ed557bb1fe0e01f0d352c35672d5484b
sha256
b4659a9300730a7b0129f748cb6ff0c1d091a53a0f67cfcc15ac590fb1816a05
sha512
f807f06be72363acccefedf5113291601d9b30a031fc577412f335d5e27fbcaada7d84914c75f5e9b7fc691490a18c03e0488145728d74ad7808fccd2c4be751
ripemd-160
9b51642cbb0528a5e883a576925ec5b7e04e915c
Diameter
40804810
Circumference
128192091.32713
Area
1.3077134825265E+15
Volume
3.5574000125955E+22
Surface area
5.2308539301061E+15
Circumference
128192091.32713
Perimeter
81609620
Area
416258129784025
Diagonal
28853357.856029
Surface area
2497548778704150
Volume
8.4926669483962E+21
Space diagonal
35338002.056597
Perimeter
61207215
Area
1.8024505746238E+14
Altitude
17669001.028299
Surface area
1.8024505746238E+14
Volume
1.0008703982616E+21
Height
9617785.9520095