2001905 is an odd 7-digits composite number following 2001904
and preceding 2001906 . In scientific notation, it is written as 2.001905 × 10^6.
The sum of its digits is 17. It has a total of 2 prime factors and 4 positive divisors.
There are 1601520 positive integers (up to 2001905) that are relatively prime to 2001905.
2001905 has 4 divisors, whose sum is 2402292
The reverse of 2001905 is 5091002
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 17
Digital Root 8
Name
two million one thousand nine hundred five
Scientific notation
2.001905 × 10^6
Engineering notation
2.001905 × 10^6
Prime Factorization
5 × 400381
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
2001905
Product of the distinct prime numbers
The prime factorization of 2001905 is 5 × 400381.
Since it has a total of 2 prime factors.
1 , 7 , 68 , 13 , 158 , 103 , 5557 , 5421 , 67749 , 44019 , 417504 , 420175 , 6233157 , 3942398 , 74918704 , 26573227 , 533898598 , 178057707 , 6994398107 , 3580697570
n×2
4003810
n×3
6005715
n×4
8007620
n×5
10009525
n÷2
1000952.5
n÷3
667301.66666667
n÷3
500476.25
n÷5
400381
n2
4007623629025
n3
8022881781063292625
n4
1.606104715192E+25
n5
3.2152690598663E+31
2 √n
1414.8869212767
3 √n
126.03209478875
4 √n
37.614982670164
5 √n
18.209108884448
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
-2001904
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 2001905 can be divided by 4 positive divisors.
The sum of these divisors (counting 2001905) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101000101111110001
3
Ternary
10202201002122
4
Quaternary
13220233301
5
Quinary
1003030110
6
Senary
110524025
8
Octal
7505761
10
Decimal
2001905
12
Duodecimal
806615
16
Hexadecimal
1e8bf1
20
Vigesimal
ca4f5
36
Base36
16woh
md5
6da43ca092c1c2a28f9d88e0444c1cf6
sha1
b376f8f0f1199fb341d857dccbbe664a0c5958b9
sha256
29b0ca367c5994d3584e62d7d08d22978a11adac77ee2c070375ccae883955dc
sha512
138a7589a6fbf590625bb7b21f1d44694d2c35fe2759984a298ed34d5cd34e927ba91d8475584bf36bdc161b0be5d09aef0fd7b8c47f914346ac8a8c332b706d
ripemd-160
93c6f9e31544c4253207c79a86bde6b071656016
Diameter
4003810
Circumference
12578340.082369
Area
12590320951298
Volume
3.3606168618677E+19
Surface area
50361283805191
Circumference
12578340.082369
Perimeter
8007620
Area
4007623629025
Diagonal
2831121.2015825
Surface area
24045741774150
Volume
8022881781063292625
Space diagonal
3467401.1719262
Perimeter
6005715
Area
1735351935771.2
Altitude
1733700.5859631
Surface area
1735351935771.2
Volume
9.4550568534131E+17
Height
943707.06719417