2001855 is an odd 7-digits composite number following 2001854
and preceding 2001856 . In scientific notation, it is written as 2.001855 × 10^6.
The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors.
There are 1061760 positive integers (up to 2001855) that are relatively prime to 2001855.
2001855 has 16 divisors, whose sum is 3220704
The reverse of 2001855 is 5581002
Previous prime number is 421
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 21
Digital Root 3
Name
two million one thousand eight hundred fifty-five
Scientific notation
2.001855 × 10^6
Engineering notation
2.001855 × 10^6
Prime Factorization
3 × 5 × 421 × 317
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2001855
Product of the distinct prime numbers
The prime factorization of 2001855 is 3 × 5 × 421 × 317.
Since it has a total of 4 prime factors.
8 , 9 , 62 , 25 , 423 , 44 , 5042 , 2589 , 12619 , 10073 , 745927 , 890364 , 3888902 , 6249895 , 91648250 , 82847140 , 922194874 , 283895926 , 8984804418 , 156750772
n×2
4003710
n×3
6005565
n×4
8007420
n×5
10009275
n÷2
1000927.5
n÷3
667285
n÷3
500463.75
n÷5
400371
n2
4007423441025
n3
8022280652533101375
n4
1.6059442635677E+25
n5
3.2148675537442E+31
2 √n
1414.8692519099
3 √n
126.03104551198
4 √n
37.614747798036
5 √n
18.209017924633
1 , 3 , 5 , 15 , 317 , 421 , 951 , 1263 , 1585 , 2105 , 4755 , 6315 , 133457 , 400371 , 667285 , 2001855
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
-2001854
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 2001855 can be divided by 16 positive divisors.
The sum of these divisors (counting 2001855) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111101000101110111111
3
Ternary
10202201000210
4
Quaternary
13220232333
5
Quinary
1003024410
6
Senary
110523503
8
Octal
7505677
10
Decimal
2001855
12
Duodecimal
806593
16
Hexadecimal
1e8bbf
20
Vigesimal
ca4cf
36
Base36
16wn3
md5
1546c8264f20d043702abdb2f3e9c885
sha1
e87e1a7f413d4d7958c61faf3d03bb4e88d40fe8
sha256
19823840aed8a2ebec50b2f11fc3495edbd4153a97d7d434fa8ba7e34541689e
sha512
d0c5de5eb4d6e3af0e1e8dd41f07462f81ca2e41efb044ab3a363123535ef929263d1226ab90204ae79ad12b6b6f3047c37995cdf3a3ee336eb3778560fe42a7
ripemd-160
6dfb503a27b4da38f383b636a6ddfd994f90f8d6
Diameter
4003710
Circumference
12578025.923104
Area
12589692042148
Volume
3.3603650617378E+19
Surface area
50358768168591
Circumference
12578025.923104
Perimeter
8007420
Area
4007423441025
Diagonal
2831050.4909044
Surface area
24044540646150
Volume
8022280652533101375
Space diagonal
3467314.5693858
Perimeter
6005565
Area
1735265251824.4
Altitude
1733657.2846929
Surface area
1735265251824.4
Volume
9.4543484166463E+17
Height
943683.49696813