1991008 is an even 7-digits composite number following 1991007
and preceding 1991009 . In scientific notation, it is written as 1.991008 × 10^6.
The sum of its digits is 28. It has a total of 6 prime factors and 12 positive divisors.
There are 995488 positive integers (up to 1991008) that are relatively prime to 1991008.
1991008 has 12 divisors, whose sum is 3919860
The reverse of 1991008 is 8001991
Previous prime number is 2
Is Prime? no
Number parity even
Number length 7
Sum of Digits 28
Digital Root 1
Name
one million nine hundred ninety-one thousand eight
Scientific notation
1.991008 × 10^6
Engineering notation
1.991008 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2 × 62219
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
124438
Product of the distinct prime numbers
The prime factorization of 1991008 is 2 × 2 × 2 × 2 × 2 × 62219.
Since it has a total of 6 prime factors.
5 , 10 , 62 , 49 , 157 , 983 , 8816 , 4630 , 41642 , 59983 , 135878 , 875900 , 9530949 , 895948 , 92834487 , 68637731 , 180340209 , 782534220 , 9266783926 , 4937258399
n×2
3982016
n×3
5973024
n×4
7964032
n×5
9955040
n÷2
995504
n÷3
663669.33333333
n÷3
497752
n÷5
398201.6
n2
3964112856064
n3
7892580409326272512
n4
1.5714190735612E+25
n5
3.1287079468129E+31
2 √n
1411.0308288624
3 √n
125.80300113404
4 √n
37.563690298776
5 √n
18.189241996546
1 , 2 , 4 , 8 , 16 , 32 , 62219 , 124438 , 248876 , 497752 , 995504 , 1991008
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1991007
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1991008 can be divided by 12 positive divisors.
The sum of these divisors (counting 1991008) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
111100110000101100000
3
Ternary
10202011011001
4
Quaternary
13212011200
5
Quinary
1002203013
6
Senary
110401344
8
Octal
7460540
10
Decimal
1991008
12
Duodecimal
800254
16
Hexadecimal
1e6160
20
Vigesimal
c8ha8
36
Base36
16o9s
md5
073a46c14db723a47307937b963a7158
sha1
06e956d2ea876bb903f7bd36fe442f95a34127f4
sha256
89d5e3a996db9cda15dffdf0831a80b8f9c6bb0fb069cbd06a25135e4f6fb3ec
sha512
a84bc83b170261e6ffffc0a7e791d8d9fbce26f4b435122fd3e629ad394beda22c39fb5584eb7ea54376e74374bb5cffd4b4a39047fc3192ce225589357a9b82
ripemd-160
3d35dd769350de8c0237d2506175845175e4b22f
Diameter
3982016
Circumference
12509872.212077
Area
12453627826612
Volume
3.3060363509075E+19
Surface area
49814511306446
Circumference
12509872.212077
Perimeter
7964032
Area
3964112856064
Diagonal
2815710.5163933
Surface area
23784677136384
Volume
7892580409326272512
Space diagonal
3448527.0142761
Perimeter
5973024
Area
1716511218410
Altitude
1724263.507138
Surface area
1716511218410
Volume
9.3014952141578E+17
Height
938570.17213111