261731 is an odd 6-digits composite number following 261730
and preceding 261732 . In scientific notation, it is written as 2.61731 × 10^5.
The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors.
There are 260352 positive integers (up to 261731) that are relatively prime to 261731.
261731 has 4 divisors, whose sum is 263112
The reverse of 261731 is 137162
Previous prime number is 227
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 20
Digital Root 2
Name
two hundred sixty-one thousand seven hundred thirty-one
Scientific notation
2.61731 × 10^5
Engineering notation
2.61731 × 10^3
Prime Factorization
227 × 1153
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
261731
Product of the distinct prime numbers
The prime factorization of 261731 is 227 × 1153.
Since it has a total of 2 prime factors.
1 , 3 , 32 , 69 , 555 , 823 , 2514 , 7555 , 3782 , 76839 , 515610 , 829085 , 9581228 , 5529712 , 7438532 , 36484876 , 502149355 , 397258818 , 3246408622 , 7300697937
n×2
523462
n×3
785193
n×4
1046924
n×5
1308655
n÷2
130865.5
n÷3
87243.666666667
n÷3
65432.75
n÷5
52346.2
n2
68503116361
n3
17929389148280891
n4
4.6926769511687E+21
n5
1.2282190311063E+27
2 √n
511.59652070748
3 √n
63.966372307964
4 √n
22.618499523785
5 √n
12.121909376521
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
-261730
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 261731 can be divided by 4 positive divisors.
The sum of these divisors (counting 261731) is 1, the average is 0.25.
Base
System
Value
2
Binary
111111111001100011
3
Ternary
111022000202
4
Quaternary
333321203
5
Quinary
31333411
6
Senary
5335415
8
Octal
777143
10
Decimal
261731
12
Duodecimal
10756b
16
Hexadecimal
3fe63
20
Vigesimal
1ce6b
36
Base36
5lyb
md5
5428ab73f3e0d1488246f4520ced5c5a
sha1
c524d4fb96b844b42fc1a618ed248fe841115613
sha256
5a5a6a142c34d4f5c3752c799435e6611e24019fcc215abdb407e73eb9e0d413
sha512
f0b9aaa36606c44851b3378905023a85a85eb066a0d24d9f2bdea266082eb0816a893cf8b94f0d54eaa12fd41d9f30205710b93e2fbd6a5ca60f9fdce83fc049
ripemd-160
f29bb24e1cf5c0ad0a17eb964a0af89c04c9018d
Diameter
523462
Circumference
1644504.3736334
Area
215208887107.72
Volume
7.5102449642122E+16
Surface area
860835548430.9
Circumference
1644504.3736334
Perimeter
1046924
Area
68503116361
Diagonal
370143.52989347
Surface area
411018698166
Volume
17929389148280891
Space diagonal
453331.38991581
Perimeter
785193
Area
29662719503.514
Altitude
226665.6949579
Surface area
29662719503.514
Volume
2.1129987748803E+15
Height
123381.17663116