20180855 is an odd 8-digits composite number following 20180854
and preceding 20180856 . In scientific notation, it is written as 2.0180855 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 16144680 positive integers (up to 20180855) that are relatively prime to 20180855.
20180855 has 4 divisors, whose sum is 24217032
The reverse of 20180855 is 55808102
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million one hundred eighty thousand eight hundred fifty-five
Scientific notation
2.0180855 × 10^7
Engineering notation
2.0180855 × 10^6
Prime Factorization
5 × 4036171
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20180855
Product of the distinct prime numbers
The prime factorization of 20180855 is 5 × 4036171.
Since it has a total of 2 prime factors.
4 , 1 , 22 , 64 , 363 , 264 , 1430 , 8218 , 17780 , 56913 , 225228 , 90485 , 6389665 , 540786 , 29883904 , 58219130 , 790974775 , 313904168 , 6892230194 , 9762371831
n×2
40361710
n×3
60542565
n×4
80723420
n×5
100904275
n÷2
10090427.5
n÷3
6726951.6666667
n÷3
5045213.75
n÷5
4036171
n2
407266908531025
n3
8.2189944273629E+21
n4
1.6586633478442E+29
n5
3.3473244516658E+36
2 √n
4492.3106526597
3 √n
272.2575010659
4 √n
67.024701809555
5 √n
28.905994279739
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
-20180854
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 20180855 can be divided by 4 positive divisors.
The sum of these divisors (counting 20180855) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111110111101110111
3
Ternary
1101222021221002
4
Quaternary
1030332331313
5
Quinary
20131241410
6
Senary
2000313515
8
Octal
114767567
10
Decimal
20180855
12
Duodecimal
691289b
16
Hexadecimal
133ef77
20
Vigesimal
662c2f
36
Base36
c0jnb
md5
411df2f367a08122223397ee997a140c
sha1
0a9ce2a3a891f63cbbe662e3cfc318e03dacb711
sha256
95ce66a40efcb26e38b8ccb9287ee0aad12481c139414b8556b7a2703504e392
sha512
8c62a6b2fd7c90e79ad2ba164e11871522688c3e8a6a7f0235d623a2c1f4001ef992a5f6123e49171f9789eabc342daae0f7e05626eac329682acfbf15e12b26
ripemd-160
93d6db2b1fa2d901fc88c3e16948e4e4d00e6cce
Diameter
40361710
Circumference
126800051.62232
Area
1.2794667278913E+15
Volume
3.4427643350532E+22
Surface area
5.1178669115652E+15
Circumference
126800051.62232
Perimeter
80723420
Area
407266908531025
Diagonal
28540038.841285
Surface area
2443601451186150
Volume
8.2189944273629E+21
Space diagonal
34954266.20018
Perimeter
60542565
Area
1.7635174445431E+14
Altitude
17477133.10009
Surface area
1.7635174445431E+14
Volume
9.6861778235379E+20
Height
9513346.2804283