1921640 is an even 7-digits composite number following 1921639
and preceding 1921641 . In scientific notation, it is written as 1.921640 × 10^6.
The sum of its digits is 23. It has a total of 5 prime factors and 16 positive divisors.
There are 658752 positive integers (up to 1921640) that are relatively prime to 1921640.
1921640 has 16 divisors, whose sum is 3706560
The reverse of 1921640 is 0461291
Previous prime number is 35
Is Prime? no
Number parity even
Number length 7
Sum of Digits 23
Digital Root 5
Name
one million nine hundred twenty-one thousand six hundred forty
Scientific notation
1.921640 × 10^6
Engineering notation
1.921640 × 10^6
Prime Factorization
2 × 2 × 2 × 35 × 6863
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
480410
Product of the distinct prime numbers
The prime factorization of 1921640 is 2 × 2 × 2 × 35 × 6863.
Since it has a total of 5 prime factors.
7 , 2 , 53 , 68 , 46 , 387 , 8966 , 6875 , 72070 , 86968 , 445783 , 523493 , 2275385 , 2196477 , 37905180 , 2419944 , 180779570 , 932355835 , 8421963765 , 3968004119
n×2
3843280
n×3
5764920
n×4
7686560
n×5
9608200
n÷2
960820
n÷3
640546.66666667
n÷3
480410
n÷5
384328
n2
3692700289600
n3
7096040584506944000
n4
1.3636035428812E+25
n5
2.6203551121422E+31
2 √n
1386.2323037644
3 √n
124.32467809297
4 √n
37.232140735719
5 √n
18.060692817043
1 , 2 , 4 , 8 , 35 , 70 , 140 , 280 , 6863 , 13726 , 27452 , 54904 , 240205 , 480410 , 960820 , 1921640
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1921639
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1921640 can be divided by 16 positive divisors.
The sum of these divisors (counting 1921640) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111010101001001101000
3
Ternary
10121121222212
4
Quaternary
13111021220
5
Quinary
442443030
6
Senary
105104252
8
Octal
7251150
10
Decimal
1921640
12
Duodecimal
788088
16
Hexadecimal
1d5268
20
Vigesimal
c0420
36
Base36
156qw
md5
26add4acf5d303cb8c5326a459a2c6d2
sha1
cba65de77affd0a83f95be07596af097630c69c0
sha256
50cb04919c0c1c8f0146e54126284d42ce54aefd2ae5d7b535f083fe80c154d7
sha512
d9faad4de1afd7be40f615b38d7e786c469da77c9df00dcb2c632359afdd6eef3254c1aed6dfb981a6963d1ebb43e139db84c5f707a00b3e475570ffa2d21186
ripemd-160
265f9758f325f0b15ef5cf7e6976bc1cf99c4671
Diameter
3843280
Circumference
12074020.213689
Area
11600960101716
Volume
2.9723825293149E+19
Surface area
46403840406865
Circumference
12074020.213689
Perimeter
7686560
Area
3692700289600
Diagonal
2717609.3499986
Surface area
22156201737600
Volume
7096040584506944000
Space diagonal
3328378.1138567
Perimeter
5764920
Area
1598986129677.9
Altitude
1664189.0569283
Surface area
1598986129677.9
Volume
8.362764028133E+17
Height
905869.78333288