20455890 is an even 8-digits composite number following 20455889
and preceding 20455891 . In scientific notation, it is written as 2.0455890 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 4209408 positive integers (up to 20455890) that are relatively prime to 20455890.
20455890 has 16 divisors, whose sum is 31472640
The reverse of 20455890 is 09855402
Previous prime number is 59
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million four hundred fifty-five thousand eight hundred ninety
Scientific notation
2.0455890 × 10^7
Engineering notation
2.0455890 × 10^6
Prime Factorization
2 × 1365 × 59 × 127
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20455890
Product of the distinct prime numbers
The prime factorization of 20455890 is 2 × 1365 × 59 × 127.
Since it has a total of 4 prime factors.
3 , 4 , 58 , 99 , 923 , 37 , 8942 , 4647 , 84930 , 69322 , 376670 , 932933 , 5237927 , 4725552 , 45746852 , 32951281 , 925765728 , 893940193 , 3824036012 , 2376396320
n×2
40911780
n×3
61367670
n×4
81823560
n×5
102279450
n÷2
10227945
n÷3
6818630
n÷3
5113972.5
n÷5
4091178
n2
418443435692100
n3
8.5596328917397E+21
n4
1.7509490887381E+29
n5
3.5817221954827E+36
2 √n
4522.8188113167
3 √n
273.48874597615
4 √n
67.251905633348
5 √n
28.984357378282
1 , 2 , 59 , 118 , 127 , 254 , 1365 , 2730 , 7493 , 14986 , 80535 , 161070 , 173355 , 346710 , 10227945 , 20455890
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
-20455889
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 20455890 can be divided by 16 positive divisors.
The sum of these divisors (counting 20455890) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110000010000111010010
3
Ternary
1102111021012120
4
Quaternary
1032002013102
5
Quinary
20214042030
6
Senary
2010235110
8
Octal
116020722
10
Decimal
20455890
12
Duodecimal
6a25a96
16
Hexadecimal
13821d2
20
Vigesimal
67gjea
36
Base36
c6fv6
md5
74ab4df0beee7f5b1906da67a6e68b9a
sha1
0681e32c22e3694e73bb75b64923f83ac611192d
sha256
d0dfa4be6a789401f54fa6df6363a7666295fd8d5f57f6ac10a3d3fba30a1081
sha512
9c66ddd4b46f5e2b4ed23e2936cac9a115a9384e10ae754dee1b7e3fad1e3ea44ebc60b46df3c0e8efbfe818ba49331af17d86cba3bc7583bf1180e2b923a11b
ripemd-160
ce9159d2cc224fa350d7e97f04bec49c7ca9011b
Diameter
40911780
Circumference
128528147.49328
Area
1.3145788235132E+15
Volume
3.5854506413487E+22
Surface area
5.2583152940527E+15
Circumference
128528147.49328
Perimeter
81823560
Area
418443435692100
Diagonal
28928997.068412
Surface area
2510660614152600
Volume
8.5596328917397E+21
Space diagonal
35430640.79404
Perimeter
61367670
Area
1.811913226781E+14
Altitude
17715320.39702
Surface area
1.811913226781E+14
Volume
1.0087624103694E+21
Height
9642999.0228041