1998191 is an odd 7-digits composite number following 1998190
and preceding 1998192 . In scientific notation, it is written as 1.998191 × 10^6.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 1834560 positive integers (up to 1998191) that are relatively prime to 1998191.
1998191 has 8 divisors, whose sum is 2163504
The reverse of 1998191 is 1918991
Previous prime number is 547
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 38
Digital Root 2
Name
one million nine hundred ninety-eight thousand one hundred ninety-one
Scientific notation
1.998191 × 10^6
Engineering notation
1.998191 × 10^6
Prime Factorization
13 × 547 × 281
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1998191
Product of the distinct prime numbers
The prime factorization of 1998191 is 13 × 547 × 281.
Since it has a total of 3 prime factors.
8 , 6 , 85 , 64 , 464 , 567 , 9377 , 32 , 46499 , 13578 , 872723 , 365401 , 5070049 , 6697240 , 47260175 , 10314107 , 848689940 , 627200543 , 7135782186 , 4176275011
n×2
3996382
n×3
5994573
n×4
7992764
n×5
9990955
n÷2
999095.5
n÷3
666063.66666667
n÷3
499547.75
n÷5
399638.2
n2
3992767272481
n3
7978311628966081871
n4
1.5942190492195E+25
n5
3.185554156179E+31
2 √n
1413.5738395995
3 √n
125.95410691111
4 √n
37.59752438126
5 √n
18.202347437418
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1998190
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1998191 can be divided by 8 positive divisors.
The sum of these divisors (counting 1998191) is 1, the average is 0.125.
Base
System
Value
2
Binary
111100111110101101111
3
Ternary
10202112000002
4
Quaternary
13213311233
5
Quinary
1002420231
6
Senary
110454515
8
Octal
7476557
10
Decimal
1998191
12
Duodecimal
80443b
16
Hexadecimal
1e7d6f
20
Vigesimal
c9f9b
36
Base36
16ttb
md5
3c2c317f35c771ddf26daba0bbabfac2
sha1
232727c7e73b621f6048cc51e208427c24bcf61d
sha256
8570183f7afc89d6800f9261ec02e559c40b4db2d45772beb83941be4d959f8e
sha512
ee7e60740e5c5774145866e7e2c33df006f88c45fceec8e861d677217da38b9c8beabd05b96afe037b8a3955e315175234c64759e22bc35a0bb8d6bd554edfbf
ripemd-160
a9da29e69f4377b9cc08214624f364fc18692a8c
Diameter
3996382
Circumference
12555004.332138
Area
12543648330720
Volume
3.3419473602146E+19
Surface area
50174593322880
Circumference
12555004.332138
Perimeter
7992764
Area
3992767272481
Diagonal
2825868.8124119
Surface area
23956603634886
Volume
7978311628966081871
Space diagonal
3460968.3352269
Perimeter
5994573
Area
1728918944683.8
Altitude
1730484.1676134
Surface area
1728918944683.8
Volume
9.4025304254357E+17
Height
941956.27080395