1998385 is an odd 7-digits composite number following 1998384
and preceding 1998386 . In scientific notation, it is written as 1.998385 × 10^6.
The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors.
There are 1598704 positive integers (up to 1998385) that are relatively prime to 1998385.
1998385 has 4 divisors, whose sum is 2398068
The reverse of 1998385 is 5838991
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 43
Digital Root 7
Name
one million nine hundred ninety-eight thousand three hundred eighty-five
Scientific notation
1.998385 × 10^6
Engineering notation
1.998385 × 10^6
Prime Factorization
5 × 399677
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1998385
Product of the distinct prime numbers
The prime factorization of 1998385 is 5 × 399677.
Since it has a total of 2 prime factors.
2 , 5 , 38 , 23 , 548 , 783 , 1421 , 4161 , 21550 , 59953 , 759198 , 693196 , 5572727 , 1177920 , 21488830 , 19559564 , 588323625 , 81792331 , 8137850068 , 5104011102
n×2
3996770
n×3
5995155
n×4
7993540
n×5
9991925
n÷2
999192.5
n÷3
666128.33333333
n÷3
499596.25
n÷5
399677
n2
3993542608225
n3
7980635645137716625
n4
1.5948382563709E+25
n5
3.1871008489577E+31
2 √n
1413.6424583324
3 √n
125.95818298225
4 √n
37.598436913419
5 √n
18.202700868924
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
-1998384
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 1998385 can be divided by 4 positive divisors.
The sum of these divisors (counting 1998385) is 1, the average is 0.25.
Base
System
Value
2
Binary
111100111111000110001
3
Ternary
10202112021021
4
Quaternary
13213320301
5
Quinary
1002422020
6
Senary
110455441
8
Octal
7477061
10
Decimal
1998385
12
Duodecimal
804581
16
Hexadecimal
1e7e31
20
Vigesimal
c9fj5
36
Base36
16typ
md5
bfb947d9e1cb27057a78112ec6d3fc2f
sha1
a747497308b5bf44d8e51dc19f44721814825ea2
sha256
a95ff365c319fe04bb0de09918813dfb93ccbc52e8cf96a19101e009242f77a2
sha512
d23de2be4e3867c6faad26de5d3f2e2c8713dbd7b9b4d19c4c95f76e8cd458a1db3f356aa065ce77842420b14fc10319f27eb5dc014019d6f77459ae910b440c
ripemd-160
c3b73696f43d2cf39dee86504458b688d5d03010
Diameter
3996770
Circumference
12556223.270088
Area
12546084119797
Volume
3.3429208418322E+19
Surface area
50184336479190
Circumference
12556223.270088
Perimeter
7993540
Area
3993542608225
Diagonal
2826143.169843
Surface area
23961255649350
Volume
7980635645137716625
Space diagonal
3461304.3530835
Perimeter
5995155
Area
1729254674909.2
Altitude
1730652.1765418
Surface area
1729254674909.2
Volume
9.4052693047599E+17
Height
942047.72328099