1991085 is an odd 7-digits composite number following 1991084
and preceding 1991086 . In scientific notation, it is written as 1.991085 × 10^6.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 1061904 positive integers (up to 1991085) that are relatively prime to 1991085.
1991085 has 8 divisors, whose sum is 3185760
The reverse of 1991085 is 5801991
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 33
Digital Root 6
Name
one million nine hundred ninety-one thousand eighty-five
Scientific notation
1.991085 × 10^6
Engineering notation
1.991085 × 10^6
Prime Factorization
3 × 5 × 132739
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1991085
Product of the distinct prime numbers
The prime factorization of 1991085 is 3 × 5 × 132739.
Since it has a total of 3 prime factors.
9 , 9 , 60 , 32 , 325 , 879 , 3064 , 2594 , 15468 , 12567 , 796236 , 591818 , 9281790 , 7117645 , 45045811 , 94523828 , 70165620 , 637525551 , 4417476290 , 3997383852
n×2
3982170
n×3
5973255
n×4
7964340
n×5
9955425
n÷2
995542.5
n÷3
663695
n÷3
497771.25
n÷5
398217
n2
3964419477225
n3
7893496154810539125
n4
1.5716621791401E+25
n5
3.1293129899532E+31
2 √n
1411.0581136155
3 √n
125.80462287643
4 √n
37.564053476901
5 √n
18.189382684074
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
-1991084
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 1991085 can be divided by 8 positive divisors.
The sum of these divisors (counting 1991085) is 1, the average is 0.125.
Base
System
Value
2
Binary
111100110000110101101
3
Ternary
10202011020220
4
Quaternary
13212012231
5
Quinary
1002203320
6
Senary
110401553
8
Octal
7460655
10
Decimal
1991085
12
Duodecimal
8002b9
16
Hexadecimal
1e61ad
20
Vigesimal
c8he5
36
Base36
16obx
md5
8a6ca9eadef7550a639b2741194c38aa
sha1
6c020b6984924e312eca63012116707deb9aff9a
sha256
8a7e3d04ae5597c83ed3349abe0dbaa796169f1e1ae1927f30caea566bbe1712
sha512
71052d5ef98a4091ffc30a0475c661fb9589848d4a948b961f404ed81889858c3bbfa1f14167aa59d6b799641d96a12c72bfa7c70adab6d856fd090aac856191
ripemd-160
9a6af9ce3d8c4a9ca7a3495135d107ddb67ca9d2
Diameter
3982170
Circumference
12510356.017346
Area
12454591105398
Volume
3.3064199374789E+19
Surface area
49818364421593
Circumference
12510356.017346
Perimeter
7964340
Area
3964419477225
Diagonal
2815819.4108376
Surface area
23786516863350
Volume
7893496154810539125
Space diagonal
3448660.3821883
Perimeter
5973255
Area
1716643989267.3
Altitude
1724330.1910941
Surface area
1716643989267.3
Volume
9.3025744305608E+17
Height
938606.47027921