321 is an odd 3-digits composite number following 320
and preceding 322 . In scientific notation, it is written as 3.21 × 10^2.
The sum of its digits is 6. It has a total of 2 prime factors and 4 positive divisors.
There are 212 positive integers (up to 321) that are relatively prime to 321.
321 has 4 divisors, whose sum is 432
The reverse of 321 is 123
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 3
Sum of Digits 6
Digital Root 6
Name
three hundred twenty-one
Scientific notation
3.21 × 10^2
Engineering notation
3.21 × 10^0
Prime Factorization
3 × 107
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
321
Product of the distinct prime numbers
The prime factorization of 321 is 3 × 107.
Since it has a total of 2 prime factors.
3 , 8 , 44 , 26 , 15 , 320 , 7251 , 6222 , 42794 , 38132 , 716848 , 407419 , 7467150 , 8032624 , 24426306 , 79351918 , 781489910 , 310744357 , 3859819975 , 2051584990
n×2
642
n×3
963
n×4
1284
n×5
1605
n÷2
160.5
n÷3
107
n÷3
80.25
n÷5
64.2
n2
103041
n3
33076161
n4
10617447681
n5
3408200705601
2 √n
17.916472867169
3 √n
6.8470212775722
4 √n
4.2327854737949
5 √n
3.1717650296503
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-320
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 321 can be divided by 4 positive divisors.
The sum of these divisors (counting 321) is 1, the average is 0.25.
Base
System
Value
2
Binary
101000001
3
Ternary
102220
4
Quaternary
11001
5
Quinary
2241
6
Senary
1253
8
Octal
501
10
Decimal
321
12
Duodecimal
229
16
Hexadecimal
141
20
Vigesimal
g1
36
Base36
8x
md5
caf1a3dfb505ffed0d024130f58c5cfa
sha1
5f6955d227a320c7f1f6c7da2a6d96a851a8118f
sha256
8d23cf6c86e834a7aa6eded54c26ce2bb2e74903538c61bdd5d2197997ab2f72
sha512
3043aa4a83b0934982956a90828140cb834869135b5f294938865de12e036de440a330e1e8529bec15ddd59f18d1161a97bfec110d2622680f2c714a737d7061
ripemd-160
a78c2f678959422a7974de4baeef46c3ef38d73a
Diameter
642
Circumference
2016.9024836046
Area
323712.84861855
Volume
138549099.20874
Surface area
1294851.3944742
Circumference
2016.9024836046
Perimeter
1284
Area
103041
Diagonal
453.96255352176
Surface area
618246
Volume
33076161
Space diagonal
555.98830922961
Perimeter
963
Area
44618.061815676
Altitude
277.9941546148
Surface area
44618.061815676
Volume
3898062.956453
Height
151.32085117392