1991539 is an odd 7-digits composite number following 1991538
and preceding 1991540 . In scientific notation, it is written as 1.991539 × 10^6.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 1782000 positive integers (up to 1991539) that are relatively prime to 1991539.
1991539 has 8 divisors, whose sum is 2039840
The reverse of 1991539 is 9351991
Previous prime number is 109
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 37
Digital Root 1
Name
one million nine hundred ninety-one thousand five hundred thirty-nine
Scientific notation
1.991539 × 10^6
Engineering notation
1.991539 × 10^6
Prime Factorization
121 × 109 × 151
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1991539
Product of the distinct prime numbers
The prime factorization of 1991539 is 121 × 109 × 151.
Since it has a total of 3 prime factors.
2 , 2 , 93 , 98 , 231 , 731 , 4455 , 2594 , 26862 , 39773 , 743540 , 865905 , 5044 , 5836659 , 79560374 , 56755321 , 64732794 , 683327356 , 5579296875 , 1354416894
n×2
3983078
n×3
5974617
n×4
7966156
n×5
9957695
n÷2
995769.5
n÷3
663846.33333333
n÷3
497884.75
n÷5
398307.8
n2
3966227588521
n3
7898896925415523819
n4
1.5730961283945E+25
n5
3.1328822904467E+31
2 √n
1411.2189766298
3 √n
125.81418398813
4 √n
37.566194598732
5 √n
18.190212103879
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
-1991538
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 1991539 can be divided by 8 positive divisors.
The sum of these divisors (counting 1991539) is 1, the average is 0.125.
Base
System
Value
2
Binary
111100110001101110011
3
Ternary
10202011212201
4
Quaternary
13212031303
5
Quinary
1002212124
6
Senary
110404031
8
Octal
7461563
10
Decimal
1991539
12
Duodecimal
800617
16
Hexadecimal
1e6373
20
Vigesimal
c8igj
36
Base36
16ooj
md5
e25f7cd2cb321281e97f45c1adc6c54a
sha1
5828b1737ee08bdf9fe662e698c6f975a6311413
sha256
e999bb6f07d6adaa1faa54c2b39a1207994b724f87a26f75c6634706ab448699
sha512
98157e02dd9c9169c85342b093493d3e98b705c05216de7aeadfa747b8c33881dc903e80675ecde86ab588df004a8aaa8e35f504daff65b837088da88f273722
ripemd-160
574de6bd352a0d63eee6bf56b22abe51ea1df184
Diameter
3983078
Circumference
12513208.583475
Area
12460271454563
Volume
3.3086822069798E+19
Surface area
49841085818251
Circumference
12513208.583475
Perimeter
7966156
Area
3966227588521
Diagonal
2816461.463795
Surface area
23797365531126
Volume
7898896925415523819
Space diagonal
3449446.7332549
Perimeter
5974617
Area
1717426924424.9
Altitude
1724723.3666275
Surface area
1717426924424.9
Volume
9.3089392997581E+17
Height
938820.48793165