664 is an even 3-digits composite number following 663
and preceding 665 . In scientific notation, it is written as 6.64 × 10^2.
The sum of its digits is 16. It has a total of 4 prime factors and 8 positive divisors.
There are 328 positive integers (up to 664) that are relatively prime to 664.
664 has 8 divisors, whose sum is 1260
The reverse of 664 is 466
Previous prime number is 2
Is Prime? no
Number parity even
Number length 3
Sum of Digits 16
Digital Root 7
Name
six hundred sixty-four
Scientific notation
6.64 × 10^2
Engineering notation
6.64 × 10^0
Prime Factorization
2 × 2 × 2 × 83
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
166
Product of the distinct prime numbers
The prime factorization of 664 is 2 × 2 × 2 × 83.
Since it has a total of 4 prime factors.
4 , 4 , 93 , 72 , 620 , 499 , 5249 , 1316 , 74091 , 63383 , 521433 , 157728 , 4035945 , 2326345 , 46697679 , 24887211 , 826204256 , 35510965 , 2619475293 , 9183636008
n×2
1328
n×3
1992
n×4
2656
n×5
3320
n÷2
332
n÷3
221.33333333333
n÷3
166
n÷5
132.8
n2
440896
n3
292754944
n4
194389282816
n5
129074483789824
2 √n
25.76819745345
3 √n
8.7241413429097
4 √n
5.0762385142397
5 √n
3.6680362235168
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
-663
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 664 can be divided by 8 positive divisors.
The sum of these divisors (counting 664) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010011000
3
Ternary
220121
4
Quaternary
22120
5
Quinary
10124
6
Senary
3024
8
Octal
1230
10
Decimal
664
12
Duodecimal
474
16
Hexadecimal
298
20
Vigesimal
1d4
36
Base36
ig
md5
2291d2ec3b3048d1a6f86c2c4591b7e0
sha1
88547be1130859cf095ec35f890a1a53eafa9ac2
sha256
09eac95eb995b821f45353054da3c7eec5f5171fb061de72f1890679956b12a8
sha512
f7fe31aa4249aa7cf1b8e62889322899df5a6ff6a39170cc82fa321434fa186072b8d9017c1da65854b02157fe3852dfdb2e83d00ffff6e3ffb4a8caef2cc198
ripemd-160
cbe2f66b639d590acd8de9b1fdf2dbbb1b6fa554
Diameter
1328
Circumference
4172.0350439672
Area
1385115.6345971
Volume
1226289041.83
Surface area
5540462.5383885
Circumference
4172.0350439672
Perimeter
2656
Area
440896
Diagonal
939.03780541574
Surface area
2645376
Volume
292754944
Space diagonal
1150.0817362257
Perimeter
1992
Area
190913.56821347
Altitude
575.04086811287
Surface area
190913.56821347
Volume
34501501.021381
Height
313.01260180525