105721 is an odd 6-digits composite number following 105720
and preceding 105722 . In scientific notation, it is written as 1.05721 × 10^5.
The sum of its digits is 16. It has a total of 2 prime factors and 4 positive divisors.
There are 82320 positive integers (up to 105721) that are relatively prime to 105721.
105721 has 4 divisors, whose sum is 107172
The reverse of 105721 is 127501
Previous prime number is 77
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 16
Digital Root 7
Name
one hundred five thousand seven hundred twenty-one
Scientific notation
1.05721 × 10^5
Engineering notation
1.05721 × 10^3
Prime Factorization
77 × 1373
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
105721
Product of the distinct prime numbers
The prime factorization of 105721 is 77 × 1373.
Since it has a total of 2 prime factors.
1 , 4 , 96 , 85 , 396 , 738 , 6771 , 8230 , 33019 , 51203 , 276084 , 462736 , 7173899 , 6755010 , 96096834 , 32245586 , 799590586 , 31986218 , 6220269967 , 2625689690
n×2
211442
n×3
317163
n×4
422884
n×5
528605
n÷2
52860.5
n÷3
35240.333333333
n÷3
26430.25
n÷5
21144.2
n2
11176929841
n3
1181636199720361
n4
1.2492376067064E+20
n5
1.320706490186E+25
2 √n
325.14765876445
3 √n
47.2846763545
4 √n
18.031851229545
5 √n
10.111888041768
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
-105720
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 105721 can be divided by 4 positive divisors.
The sum of these divisors (counting 105721) is 1, the average is 0.25.
Base
System
Value
2
Binary
11001110011111001
3
Ternary
12101000121
4
Quaternary
121303321
5
Quinary
11340341
6
Senary
2133241
8
Octal
316371
10
Decimal
105721
12
Duodecimal
51221
16
Hexadecimal
19cf9
20
Vigesimal
d461
36
Base36
29kp
md5
cdf52db1a274aea750e0db61f6808a51
sha1
1e8fcd3da78d1f15131d7a8c16c3dcad66968a1c
sha256
1519e58c21e298b4abf43bcbfdd615517763a672c97e5b13c34944862fc674a0
sha512
746598643fe826524016de4df1f1dbe8aec5f121d3259cc1312c1c037cd6481e5a3335ba2a9df93f977bec36ca10102257a5f9c7b9cfb35b6cfa1fd951928943
ripemd-160
1c225a700927fda7dc9d67f0d80e96c7801696e1
Diameter
211442
Circumference
664264.63386033
Area
35113360678.174
Volume
4.9496261390097E+15
Surface area
140453442712.7
Circumference
664264.63386033
Perimeter
422884
Area
11176929841
Diagonal
149512.07202765
Surface area
67061579046
Volume
1181636199720361
Space diagonal
183114.14342699
Perimeter
317163
Area
4839752589.3112
Altitude
91557.071713495
Surface area
4839752589.3112
Volume
1.3925716161963E+14
Height
49837.357342549