1998668 is an even 7-digits composite number following 1998667
and preceding 1998669 . In scientific notation, it is written as 1.998668 × 10^6.
The sum of its digits is 47. It has a total of 5 prime factors and 24 positive divisors.
There are 835200 positive integers (up to 1998668) that are relatively prime to 1998668.
1998668 has 24 divisors, whose sum is 4097184
The reverse of 1998668 is 8668991
Previous prime number is 1741
Is Prime? no
Number parity even
Number length 7
Sum of Digits 47
Digital Root 2
Name
one million nine hundred ninety-eight thousand six hundred sixty-eight
Scientific notation
1.998668 × 10^6
Engineering notation
1.998668 × 10^6
Prime Factorization
2 × 2 × 7 × 1741 × 41
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
999334
Product of the distinct prime numbers
The prime factorization of 1998668 is 2 × 2 × 7 × 1741 × 41.
Since it has a total of 5 prime factors.
2 , 4 , 67 , 20 , 656 , 47 , 2840 , 3636 , 36350 , 82204 , 210630 , 170159 , 7469665 , 7972845 , 75239806 , 24738085 , 267651383 , 352296028 , 1180511174 , 5605116486
n×2
3997336
n×3
5996004
n×4
7994672
n×5
9993340
n÷2
999334
n÷3
666222.66666667
n÷3
499667
n÷5
399733.6
n2
3994673774224
n3
7984026642980733632
n4
1.5957418562473E+25
n5
3.1893581843421E+31
2 √n
1413.7425508203
3 √n
125.96412853049
4 √n
37.59976796232
5 √n
18.203216392466
1 , 2 , 4 , 7 , 14 , 28 , 41 , 82 , 164 , 287 , 574 , 1148 , 1741 , 3482 , 6964 , 12187 , 24374 , 48748 , 71381 , 142762 , 285524 , 499667 , 999334 , 1998668
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1998667
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1998668 can be divided by 24 positive divisors.
The sum of these divisors (counting 1998668) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
111100111111101001100
3
Ternary
10202112122202
4
Quaternary
13213331030
5
Quinary
1002424133
6
Senary
110501032
8
Octal
7477514
10
Decimal
1998668
12
Duodecimal
804778
16
Hexadecimal
1e7f4c
20
Vigesimal
c9gd8
36
Base36
16u6k
md5
4d389d27f86adca2f08f93787782a57c
sha1
a01103ddbae918e76b9224de28a9adacf28d131c
sha256
8ff52d74319195773d86023f92e3a2c3d7e45bc273fbd05026daaa382cc526bc
sha512
c3b0e92f30424547ef4fef1cb3c51f9218016489fbe846f83d66a8eedd4145f83847f69fa4e4d1d1a709205c92faff0e66e37247c3487942cc1eacb7da30f116
ripemd-160
5078a3b7d81746214b9b000c0e0ebb31073974b8
Diameter
3997336
Circumference
12558001.41153
Area
12549637782590
Volume
3.3443412596871E+19
Surface area
50198551130360
Circumference
12558001.41153
Perimeter
7994672
Area
3994673774224
Diagonal
2826543.3922811
Surface area
23968042645344
Volume
7984026642980733632
Space diagonal
3461794.5234621
Perimeter
5996004
Area
1729744484154.7
Altitude
1730897.261731
Surface area
1729744484154.7
Volume
9.4092656340429E+17
Height
942181.13076037