2644 is an even 4-digits composite number following 2643
and preceding 2645 . In scientific notation, it is written as 2.644 × 10^3.
The sum of its digits is 16. It has a total of 3 prime factors and 6 positive divisors.
There are 1320 positive integers (up to 2644) that are relatively prime to 2644.
2644 has 6 divisors, whose sum is 4634
The reverse of 2644 is 4462
Previous prime number is 2
Is Prime? no
Number parity even
Number length 4
Sum of Digits 16
Digital Root 7
Name
two thousand six hundred forty-four
Scientific notation
2.644 × 10^3
Engineering notation
2.644 × 10^3
Prime Factorization
2 × 2 × 661
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1322
Product of the distinct prime numbers
The prime factorization of 2644 is 2 × 2 × 661.
Since it has a total of 3 prime factors.
4 , 4 , 16 , 22 , 245 , 951 , 679 , 6937 , 13594 , 39830 , 821355 , 88936 , 5888264 , 208231 , 87301826 , 35012079 , 123385904 , 772604505 , 7479824669 , 9205854209
n×2
5288
n×3
7932
n×4
10576
n×5
13220
n÷2
1322
n÷3
881.33333333333
n÷3
661
n÷5
528.8
n2
6990736
n3
18483505984
n4
48870389821696
n5
129213310688564224
2 √n
51.41984052873
3 √n
13.827823163105
4 √n
7.1707628972606
5 √n
4.8356213920097
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-2643
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 2644 can be divided by 6 positive divisors.
The sum of these divisors (counting 2644) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
101001010100
3
Ternary
10121221
4
Quaternary
221110
5
Quinary
41034
6
Senary
20124
8
Octal
5124
10
Decimal
2644
12
Duodecimal
1644
16
Hexadecimal
a54
20
Vigesimal
6c4
36
Base36
21g
md5
f35a2bc72dfdc2aae569a0c7370bd7f5
sha1
5d17fd19490538517917e53daa91d76ca198a330
sha256
70c766cb85e3b1d3d9c6a7daecd1c311a24725c1c49b4ee4341cacdb2cc2e2f5
sha512
74fa79e11bd26d50b6460306f7646167dab52441a292fec45d059c96bdc10ab2007690760e694633373e742548a6373a40c2c291715e70019ec40c8bc22df812
ripemd-160
b570fb2523ecf04a5a26bf6c13167c7778ce845c
Diameter
5288
Circumference
16612.741952183
Area
21962044.860786
Volume
77423528815.89
Surface area
87848179.443143
Circumference
16612.741952183
Perimeter
10576
Area
6990736
Diagonal
3739.1806589145
Surface area
41944416
Volume
18483505984
Space diagonal
4579.5423352121
Perimeter
7932
Area
3027077.4835752
Altitude
2289.7711676061
Surface area
3027077.4835752
Volume
2178302070.2314
Height
1246.3935529715