1998788 is an even 7-digits composite number following 1998787
and preceding 1998789 . In scientific notation, it is written as 1.998788 × 10^6.
The sum of its digits is 50. It has a total of 4 prime factors and 12 positive divisors.
There are 908520 positive integers (up to 1998788) that are relatively prime to 1998788.
1998788 has 12 divisors, whose sum is 3815952
The reverse of 1998788 is 8878991
Previous prime number is 11
Is Prime? no
Number parity even
Number length 7
Sum of Digits 50
Digital Root 5
Name
one million nine hundred ninety-eight thousand seven hundred eighty-eight
Scientific notation
1.998788 × 10^6
Engineering notation
1.998788 × 10^6
Prime Factorization
2 × 2 × 11 × 45427
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
999394
Product of the distinct prime numbers
The prime factorization of 1998788 is 2 × 2 × 11 × 45427.
Since it has a total of 4 prime factors.
1 , 10 , 54 , 64 , 342 , 463 , 4777 , 8335 , 81111 , 86592 , 32204 , 236633 , 1710103 , 9229825 , 30838811 , 28774342 , 671776703 , 740666641 , 3554438094 , 9320794417
n×2
3997576
n×3
5996364
n×4
7995152
n×5
9993940
n÷2
999394
n÷3
666262.66666667
n÷3
499697
n÷5
399757.6
n2
3995153468944
n3
7985464811883639872
n4
1.5961251240415E+25
n5
3.1903157444327E+31
2 √n
1413.7849907253
3 √n
125.96664944157
4 √n
37.600332322005
5 √n
18.203434971391
1 , 2 , 4 , 11 , 22 , 44 , 45427 , 90854 , 181708 , 499697 , 999394 , 1998788
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1998787
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1998788 can be divided by 12 positive divisors.
The sum of these divisors (counting 1998788) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
111100111111111000100
3
Ternary
10202112211012
4
Quaternary
13213333010
5
Quinary
1002430123
6
Senary
110501352
8
Octal
7477704
10
Decimal
1998788
12
Duodecimal
804858
16
Hexadecimal
1e7fc4
20
Vigesimal
c9gj8
36
Base36
16u9w
md5
e7d58af97355291c59963911023f9985
sha1
964f5dec99fd0147c3c2b8c3029d971798a02932
sha256
d01a049d0591adc217f8062fbf32fa69e8b2310c1c2bd93c519f713fb816f9d9
sha512
ed08ca9340bebeed9234b5a8d7e0590ff1e7d7bf4482a64b73c8015bcc2ce607f6749bcf523ab653339fb2e48869cb6e16e3259c6b3ab1e012c0effe63d96b14
ripemd-160
0bc7b8c1f34372bae7b8b19ad94f5565150b9bab
Diameter
3997576
Circumference
12558755.393767
Area
12551144787998
Volume
3.3449436784685E+19
Surface area
50204579151993
Circumference
12558755.393767
Perimeter
7995152
Area
3995153468944
Diagonal
2826713.0979086
Surface area
23970920813664
Volume
7985464811883639872
Space diagonal
3462002.369559
Perimeter
5996364
Area
1729952198061.5
Altitude
1731001.1847795
Surface area
1729952198061.5
Volume
9.4109605323491E+17
Height
942237.69930286