1998690 is an even 7-digits composite number following 1998689
and preceding 1998691 . In scientific notation, it is written as 1.998690 × 10^6.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 501504 positive integers (up to 1998690) that are relatively prime to 1998690.
1998690 has 16 divisors, whose sum is 3386880
The reverse of 1998690 is 0968991
Previous prime number is 17
Is Prime? no
Number parity even
Number length 7
Sum of Digits 42
Digital Root 6
Name
one million nine hundred ninety-eight thousand six hundred ninety
Scientific notation
1.998690 × 10^6
Engineering notation
1.998690 × 10^6
Prime Factorization
2 × 15 × 17 × 3919
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1998690
Product of the distinct prime numbers
The prime factorization of 1998690 is 2 × 15 × 17 × 3919.
Since it has a total of 4 prime factors.
2 , 1 , 100 , 9 , 514 , 69 , 8585 , 6873 , 82831 , 1334 , 402714 , 957289 , 6554821 , 6550095 , 95374037 , 14029240 , 161454168 , 775316074 , 196835604 , 2935603655
n×2
3997380
n×3
5996070
n×4
7994760
n×5
9993450
n÷2
999345
n÷3
666230
n÷3
499672.5
n÷5
399738
n2
3994761716100
n3
7984290294351909000
n4
1.5958121168418E+25
n5
3.1895337198106E+31
2 √n
1413.7503315649
3 √n
125.96459070507
4 √n
37.599871430165
5 √n
18.203256466055
1 , 2 , 15 , 17 , 30 , 34 , 255 , 510 , 3919 , 7838 , 58785 , 66623 , 117570 , 133246 , 999345 , 1998690
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
-1998689
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 1998690 can be divided by 16 positive divisors.
The sum of these divisors (counting 1998690) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111100111111101100010
3
Ternary
10202112200120
4
Quaternary
13213331202
5
Quinary
1002424230
6
Senary
110501110
8
Octal
7477542
10
Decimal
1998690
12
Duodecimal
804796
16
Hexadecimal
1e7f62
20
Vigesimal
c9gea
36
Base36
16u76
md5
66ab51ba36aa94087ab6c7d3c634e5a2
sha1
c4fa69f1d71f9f5340dc8fdc56b7395ad1ae3045
sha256
2990de56a458c1fb923b506e84dcb4973897663539ff7cc212c7714e3332b0b1
sha512
e1a9c6f2fb841e16cef50ea488ac5134deaf50c8751f69fcb9bccf9b85d027ce8f6210c2ce3cb4a7ce3b832c557625ec23db52356e84bdf3aaca9630116adf09
ripemd-160
8fef2a53923bf0353455cc0c1e41dec899ad07b4
Diameter
3997380
Circumference
12558139.641607
Area
12549914060142
Volume
3.3444516977152E+19
Surface area
50199656240566
Circumference
12558139.641607
Perimeter
7994760
Area
3994761716100
Diagonal
2826574.5049795
Surface area
23968570296600
Volume
7984290294351909000
Space diagonal
3461832.6285798
Perimeter
5996070
Area
1729782564104.1
Altitude
1730916.3142899
Surface area
1729782564104.1
Volume
9.4095763501636E+17
Height
942191.50165983