2191808 is an even 7-digits composite number following 2191807
and preceding 2191809 . In scientific notation, it is written as 2.191808 × 10^6.
The sum of its digits is 29. It has a total of 8 prime factors and 28 positive divisors.
There are 1047552 positive integers (up to 2191808) that are relatively prime to 2191808.
2191808 has 28 divisors, whose sum is 4541520
The reverse of 2191808 is 8081912
Previous prime number is 23
Is Prime? no
Number parity even
Number length 7
Sum of Digits 29
Digital Root 2
Name
two million one hundred ninety-one thousand eight hundred eight
Scientific notation
2.191808 × 10^6
Engineering notation
2.191808 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2 × 2 × 23 × 1489
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
8
Total number of prime factors
rad
Radical
68494
Product of the distinct prime numbers
The prime factorization of 2191808 is 2 × 2 × 2 × 2 × 2 × 2 × 23 × 1489.
Since it has a total of 8 prime factors.
8 , 9 , 78 , 28 , 723 , 859 , 6746 , 5867 , 37000 , 59055 , 162280 , 871444 , 4375130 , 969803 , 17815786 , 72078791 , 409601252 , 555134021 , 2910462627 , 6309717608
n×2
4383616
n×3
6575424
n×4
8767232
n×5
10959040
n÷2
1095904
n÷3
730602.66666667
n÷3
547952
n÷5
438361.6
n2
4804022308864
n3
1.0529494528747E+19
n4
2.3078630344063E+25
n5
5.058392661716E+31
2 √n
1480.4755992586
3 √n
129.89751291265
4 √n
38.476948933856
5 √n
18.542167568701
1 , 2 , 4 , 8 , 16 , 23 , 32 , 46 , 64 , 92 , 184 , 368 , 736 , 1472 , 1489 , 2978 , 5956 , 11912 , 23824 , 34247 , 47648 , 68494 , 95296 , 136988 , 273976 , 547952 , 1095904 , 2191808
28 divisors
τ
Total Divisors
28
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-2191807
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.035714285714286
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
28
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 2191808 can be divided by 28 positive divisors.
The sum of these divisors (counting 2191808) is 1, the average is 0.035714285714286.
Base
System
Value
2
Binary
1000010111000111000000
3
Ternary
11010100121002
4
Quaternary
20113013000
5
Quinary
1030114213
6
Senary
114551132
8
Octal
10270700
10
Decimal
2191808
12
Duodecimal
8984a8
16
Hexadecimal
2171c0
20
Vigesimal
ddja8
36
Base36
1az7k
md5
03d6d7d16698f6b564a823432abe5012
sha1
4544b70d5e0a46139217a6ef43cb35d3ac805744
sha256
c77c2e2e3ef32ed4f8fb33535587de7b407f0d6100480d1f932ffdc5264fdaf8
sha512
9207056163f39107d15b42d5f6a827e2506d626589bfe37dff01448d94bc72c63f2a2d0862b85ea9eec27fe14dbabe2f89c6c2712e6c238dd4122eb56c57e0e3
ripemd-160
17ec670da15a2c65dfaa4f5fb2593eec2462c850
Diameter
4383616
Circumference
13771535.821759
Area
15092281193209
Volume
4.4105843543366E+19
Surface area
60369124772834
Circumference
13771535.821759
Perimeter
8767232
Area
4804022308864
Diagonal
3099684.5997178
Surface area
28824133853184
Volume
1.0529494528747E+19
Space diagonal
3796322.8164359
Perimeter
6575424
Area
2080202679911.7
Altitude
1898161.408218
Surface area
2080202679911.7
Volume
1.2409128306239E+18
Height
1033228.1999059