1998913 is an odd 7-digits composite number following 1998912
and preceding 1998914 . In scientific notation, it is written as 1.998913 × 10^6.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 1713348 positive integers (up to 1998913) that are relatively prime to 1998913.
1998913 has 4 divisors, whose sum is 2284480
The reverse of 1998913 is 3198991
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 40
Digital Root 4
Name
one million nine hundred ninety-eight thousand nine hundred thirteen
Scientific notation
1.998913 × 10^6
Engineering notation
1.998913 × 10^6
Prime Factorization
7 × 285559
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1998913
Product of the distinct prime numbers
The prime factorization of 1998913 is 7 × 285559.
Since it has a total of 2 prime factors.
7 , 5 , 69 , 11 , 501 , 194 , 7243 , 8355 , 64228 , 25390 , 128594 , 410740 , 9201453 , 3705400 , 11790025 , 26313800 , 160051895 , 638135440 , 7839848906 , 4668830822
n×2
3997826
n×3
5996739
n×4
7995652
n×5
9994565
n÷2
999456.5
n÷3
666304.33333333
n÷3
499728.25
n÷5
399782.6
n2
3995653181569
n3
7986963088129634497
n4
1.5965244347382E+25
n5
3.1913134474159E+31
2 √n
1413.8291976049
3 √n
125.96927528332
4 √n
37.600920169656
5 √n
18.203662646607
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
-1998912
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 1998913 can be divided by 4 positive divisors.
The sum of these divisors (counting 1998913) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101000000001000001
3
Ternary
10202112222211
4
Quaternary
13220001001
5
Quinary
1002431123
6
Senary
110502121
8
Octal
7500101
10
Decimal
1998913
12
Duodecimal
804941
16
Hexadecimal
1e8041
20
Vigesimal
c9h5d
36
Base36
16udd
md5
5a9df77264db72af05e6342bf89abaad
sha1
bbfaa9039573a44b15d0ba74750f296d65bfe445
sha256
6e2dd56db28a48e5d01017c3fc47c52a4fcc91dc4d97b1de525bcca58eb0f6b8
sha512
57c843c4f820cbcd311ed2cd2d64fb3ce0df6c707114446b760a43c3841c84712731994572ae0a6808aabe9aaf9902295e814af84ddd9e7e4e7931a60ce773fd
ripemd-160
c354a471a9d688d4fb5d25e976af6d08205a82e8
Diameter
3997826
Circumference
12559540.79193
Area
12552714681510
Volume
3.3455712749548E+19
Surface area
50210858726039
Circumference
12559540.79193
Perimeter
7995652
Area
3995653181569
Diagonal
2826889.8746039
Surface area
23973919089414
Volume
7986963088129634497
Space diagonal
3462218.8759099
Perimeter
5996739
Area
1730168579975.4
Altitude
1731109.437955
Surface area
1730168579975.4
Volume
9.4127262678385E+17
Height
942296.62486796