1998081 is an odd 7-digits composite number following 1998080
and preceding 1998082 . In scientific notation, it is written as 1.998081 × 10^6.
The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors.
There are 1300320 positive integers (up to 1998081) that are relatively prime to 1998081.
1998081 has 16 divisors, whose sum is 3030720
The reverse of 1998081 is 1808991
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 36
Digital Root 9
Name
one million nine hundred ninety-eight thousand eighty-one
Scientific notation
1.998081 × 10^6
Engineering notation
1.998081 × 10^6
Prime Factorization
43 × 3 × 9 × 1721
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1998081
Product of the distinct prime numbers
The prime factorization of 1998081 is 43 × 3 × 9 × 1721.
Since it has a total of 4 prime factors.
3 , 10 , 28 , 42 , 803 , 618 , 86 , 7859 , 6793 , 57149 , 797882 , 84817 , 690072 , 7292076 , 19321752 , 35851949 , 451692301 , 181822923 , 4989983272 , 6166872742
n×2
3996162
n×3
5994243
n×4
7992324
n×5
9990405
n÷2
999040.5
n÷3
666027
n÷3
499520.25
n÷5
399616.2
n2
3992327682561
n3
7976994088299165441
n4
1.5938680324943E+25
n5
3.1846774322342E+31
2 √n
1413.5349305907
3 √n
125.95179561954
4 √n
37.597006936599
5 √n
18.202147025915
1 , 3 , 9 , 27 , 43 , 129 , 387 , 1161 , 1721 , 5163 , 15489 , 46467 , 74003 , 222009 , 666027 , 1998081
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
-1998080
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 1998081 can be divided by 16 positive divisors.
The sum of these divisors (counting 1998081) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111100111110100000001
3
Ternary
10202111212000
4
Quaternary
13213310001
5
Quinary
1002414311
6
Senary
110454213
8
Octal
7476401
10
Decimal
1998081
12
Duodecimal
804369
16
Hexadecimal
1e7d01
20
Vigesimal
c9f41
36
Base36
16tq9
md5
00aa1041c550270df4024df35caf6cac
sha1
30fe34e4f9a800ba49bf27cfd0c94ba73746ac30
sha256
d31f5b6ad8f350285bcb9f0f702ded34553d5024e4dbed521ec7460248f77d10
sha512
547e7cde5a87a71b1a8e798ea34510530432fe45a1e1ddff8019260c0aa20d725b95b6fabef8ce28420de4ee18758cb5612fa29ff12770d36520355cf5a422ca
ripemd-160
109056cb259dc3b2e1701be98608907714b02df9
Diameter
3996162
Circumference
12554313.181755
Area
12542267318257
Volume
3.3413954700706E+19
Surface area
50169069273027
Circumference
12554313.181755
Perimeter
7992324
Area
3992327682561
Diagonal
2825713.24892
Surface area
23953966095366
Volume
7976994088299165441
Space diagonal
3460777.809638
Perimeter
5994243
Area
1728728596664.8
Altitude
1730388.904819
Surface area
1728728596664.8
Volume
9.4009776888689E+17
Height
941904.41630667