20455581 is an odd 8-digits composite number following 20455580
and preceding 20455582 . In scientific notation, it is written as 2.0455581 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 13637052 positive integers (up to 20455581) that are relatively prime to 20455581.
20455581 has 4 divisors, whose sum is 27274112
The reverse of 20455581 is 18555402
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million four hundred fifty-five thousand five hundred eighty-one
Scientific notation
2.0455581 × 10^7
Engineering notation
2.0455581 × 10^6
Prime Factorization
3 × 6818527
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20455581
Product of the distinct prime numbers
The prime factorization of 20455581 is 3 × 6818527.
Since it has a total of 2 prime factors.
9 , 2 , 51 , 61 , 679 , 665 , 6010 , 1944 , 78609 , 31159 , 877427 , 855557 , 9934179 , 3671365 , 33454076 , 17433351 , 277228596 , 372597567 , 995222308 , 4756416860
n×2
40911162
n×3
61366743
n×4
81822324
n×5
102277905
n÷2
10227790.5
n÷3
6818527
n÷3
5113895.25
n÷5
4091116.2
n2
418430794047561
n3
8.5592450005342E+21
n4
1.7508432940727E+29
n5
3.5814516820211E+36
2 √n
4522.784651075
3 √n
273.48736889196
4 √n
67.251651660573
5 √n
28.984269812104
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
-20455580
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 20455581 can be divided by 4 positive divisors.
The sum of these divisors (counting 20455581) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110000010000010011101
3
Ternary
1102111020210010
4
Quaternary
1032002002131
5
Quinary
20214034311
6
Senary
2010233433
8
Octal
116020235
10
Decimal
20455581
12
Duodecimal
6a25879
16
Hexadecimal
138209d
20
Vigesimal
67gij1
36
Base36
c6fml
md5
e41bb50a54f8286857203c05bfd1d8ab
sha1
8e7438fea7419fb6ccf21d31e68ade6acd9423fd
sha256
66a7b7b151d2497b27b6aec4c01fe0fec0d80636033ef8c9d25b4ec76bca5a35
sha512
2a5a6b849c0732057636751f965c9373b7db039ccd20f8f69bf9e2058e888cd2052df6ef19948eef66b28dd326889036e0854430adc3b5fb5f2caf811d928d03
ripemd-160
b8c791b8803c66b9f064a4d8780a140f002db226
Diameter
40911162
Circumference
128526205.98902
Area
1.3145391086156E+15
Volume
3.5852881618605E+22
Surface area
5.2581564344622E+15
Circumference
128526205.98902
Perimeter
81822324
Area
418430794047561
Diagonal
28928560.076421
Surface area
2510584764285366
Volume
8.5592450005342E+21
Space diagonal
35430105.590341
Perimeter
61366743
Area
1.8118584868544E+14
Altitude
17715052.79517
Surface area
1.8118584868544E+14
Volume
1.0087166969525E+21
Height
9642853.3588071