20405554 is an even 8-digits composite number following 20405553
and preceding 20405555 . In scientific notation, it is written as 2.0405554 × 10^7.
The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors.
There are 9008208 positive integers (up to 20405554) that are relatively prime to 20405554.
20405554 has 16 divisors, whose sum is 34396992
The reverse of 20405554 is 45550402
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million four hundred five thousand five hundred fifty-four
Scientific notation
2.0405554 × 10^7
Engineering notation
2.0405554 × 10^6
Prime Factorization
2 × 23 × 13 × 34123
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20405554
Product of the distinct prime numbers
The prime factorization of 20405554 is 2 × 23 × 13 × 34123.
Since it has a total of 4 prime factors.
4 , 2 , 60 , 82 , 584 , 334 , 7079 , 1255 , 16616 , 53008 , 882126 , 771561 , 7982392 , 7823862 , 24523968 , 61121862 , 390539522 , 134742549 , 9364020612 , 5110115636
n×2
40811108
n×3
61216662
n×4
81622216
n×5
102027770
n÷2
10202777
n÷3
6801851.3333333
n÷3
5101388.5
n÷5
4081110.8
n2
416386634046916
n3
8.4965999459226E+21
n4
1.7337782901292E+29
n5
3.5378706523259E+36
2 √n
4517.2507125463
3 √n
273.26423628522
4 √n
67.210495553494
5 √n
28.970078901383
1 , 2 , 13 , 23 , 26 , 46 , 299 , 598 , 34123 , 68246 , 443599 , 784829 , 887198 , 1569658 , 10202777 , 20405554
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
-20405553
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 20405554 can be divided by 16 positive divisors.
The sum of these divisors (counting 20405554) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101110101110100110010
3
Ternary
1102101201011021
4
Quaternary
1031311310302
5
Quinary
20210434204
6
Senary
2005210054
8
Octal
115656462
10
Decimal
20405554
12
Duodecimal
6a0092a
16
Hexadecimal
1375d32
20
Vigesimal
67adhe
36
Base36
c5d0y
md5
b23cdae707ab16223460029587129a8f
sha1
036e9f5301951908ca5a63a842499c6c80e6b5f7
sha256
91585b09080729add3955a05bc46d33cd21426ff9966ba4068ee2989a61e284d
sha512
adc29fd9b4b6ed21e428cc9991d0c424222d9853523cd1f2bffc8fcd939c9b026f2a2a46d5686cb8626d65717c5d962f427df2ddf13a1713b3548711ade45aaa
ripemd-160
7a9b87153ba175ee72ad92d4134092051d0241aa
Diameter
40811108
Circumference
128211877.07766
Area
1.3081171905748E+15
Volume
3.5590474627469E+22
Surface area
5.2324687622991E+15
Circumference
128211877.07766
Perimeter
81622216
Area
416386634046916
Diagonal
28857811.214537
Surface area
2498319804281496
Volume
8.4965999459226E+21
Space diagonal
35343456.28459
Perimeter
61216662
Area
1.8030070144046E+14
Altitude
17671728.142295
Surface area
1.8030070144046E+14
Volume
1.0013339064652E+21
Height
9619270.4048455