1998840 is an even 7-digits composite number following 1998839
and preceding 1998841 . In scientific notation, it is written as 1.998840 × 10^6.
The sum of its digits is 39. It has a total of 5 prime factors and 16 positive divisors.
There are 532992 positive integers (up to 1998840) that are relatively prime to 1998840.
1998840 has 16 divisors, whose sum is 3997920
The reverse of 1998840 is 0488991
Previous prime number is 15
Is Prime? no
Number parity even
Number length 7
Sum of Digits 39
Digital Root 3
Name
one million nine hundred ninety-eight thousand eight hundred forty
Scientific notation
1.998840 × 10^6
Engineering notation
1.998840 × 10^6
Prime Factorization
2 × 2 × 2 × 15 × 16657
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
499710
Product of the distinct prime numbers
The prime factorization of 1998840 is 2 × 2 × 2 × 15 × 16657.
Since it has a total of 5 prime factors.
2 , 10 , 62 , 5 , 167 , 55 , 5732 , 3301 , 57750 , 24801 , 94051 , 660293 , 1651542 , 9355280 , 33828889 , 91763677 , 990434538 , 300767715 , 9300519063 , 2326992424
n×2
3997680
n×3
5996520
n×4
7995360
n×5
9994200
n÷2
999420
n÷3
666280
n÷3
499710
n÷5
399768
n2
3995361345600
n3
7986088072039104000
n4
1.5962912281915E+25
n5
3.1907307585582E+31
2 √n
1413.8033809551
3 √n
125.96774180503
4 √n
37.600576869977
5 √n
18.203529685664
1 , 2 , 4 , 8 , 15 , 30 , 60 , 120 , 16657 , 33314 , 66628 , 133256 , 249855 , 499710 , 999420 , 1998840
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
-1998839
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 1998840 can be divided by 16 positive divisors.
The sum of these divisors (counting 1998840) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111100111111111111000
3
Ternary
10202112220010
4
Quaternary
13213333320
5
Quinary
1002430330
6
Senary
110501520
8
Octal
7477770
10
Decimal
1998840
12
Duodecimal
8048a0
16
Hexadecimal
1e7ff8
20
Vigesimal
c9h20
36
Base36
16ubc
md5
dcb544b2a416f47ed8bcd4065c5ecec0
sha1
cb9bc5b87aff061f7b0e8d3520970b59c85d7524
sha256
252aaa37329cf5565dd56de6c6c475e2dfd7760eca6eba6890fd8f3a7999ef1c
sha512
042409f61c88a6d3425512e5f50d841a29e3db30c113622a3db7b8621f3f008c16f7d0d6ea08cf944bfa82ad2fbef7dce4a8c537da1fd49460614438c000aab2
ripemd-160
68f3d3c691d04cecfbdcfe0b02bc32c17f60d9b4
Diameter
3997680
Circumference
12559082.119403
Area
12551797851774
Volume
3.3452047490719E+19
Surface area
50207191407094
Circumference
12559082.119403
Perimeter
7995360
Area
3995361345600
Diagonal
2826786.6370138
Surface area
23972168073600
Volume
7986088072039104000
Space diagonal
3462092.436201
Perimeter
5996520
Area
1730042211294
Altitude
1731046.2181005
Surface area
1730042211294
Volume
9.4116950514864E+17
Height
942262.21233795