261531 is an odd 6-digits composite number following 261530
and preceding 261532 . In scientific notation, it is written as 2.61531 × 10^5.
The sum of its digits is 18. It has a total of 2 prime factors and 4 positive divisors.
There are 174348 positive integers (up to 261531) that are relatively prime to 261531.
261531 has 4 divisors, whose sum is 290600
The reverse of 261531 is 135162
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 18
Digital Root 9
Name
two hundred sixty-one thousand five hundred thirty-one
Scientific notation
2.61531 × 10^5
Engineering notation
2.61531 × 10^3
Prime Factorization
9 × 29059
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
261531
Product of the distinct prime numbers
The prime factorization of 261531 is 9 × 29059.
Since it has a total of 2 prime factors.
10 , 1 , 75 , 29 , 954 , 329 , 4047 , 8695 , 60866 , 34413 , 887944 , 327256 , 69295 , 163188 , 33013994 , 5966814 , 483476439 , 38199706 , 3158395762 , 9557859294
n×2
523062
n×3
784593
n×4
1046124
n×5
1307655
n÷2
130765.5
n÷3
87177
n÷3
65382.75
n÷5
52306.2
n2
68398463961
n3
17888318678184291
n4
4.6783498722242E+21
n5
1.2235335204327E+27
2 √n
511.40101681557
3 √n
63.950074997013
4 √n
22.614177341119
5 √n
12.12005623475
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
-261530
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 261531 can be divided by 4 positive divisors.
The sum of these divisors (counting 261531) is 1, the average is 0.25.
Base
System
Value
2
Binary
111111110110011011
3
Ternary
111021202100
4
Quaternary
333312123
5
Quinary
31332111
6
Senary
5334443
8
Octal
776633
10
Decimal
261531
12
Duodecimal
107423
16
Hexadecimal
3fd9b
20
Vigesimal
1cdgb
36
Base36
5lsr
md5
c33b60c7d587862106557ab89f3b71d6
sha1
de76e8e75445cfc9d22b967ce0edd4bc3837d8b2
sha256
4f67f6fd59a4da4390ee79c233a4746846c5a2ddbde604c8b98c62f27e1bbc04
sha512
09b8d5f0c2805af82edfcbc2f814f156dfcec8ef2b2163195d660e421003e77366274cf2e816ecfccba288031a4be5625e43ab4a43ee11a112d5cfb283013085
ripemd-160
d37c79c3cf4817dcbeaabf7a4608288220832a57
Diameter
523062
Circumference
1643247.736572
Area
214880111896.7
Volume
7.4930414059276E+16
Surface area
859520447586.82
Circumference
1643247.736572
Perimeter
1046124
Area
68398463961
Diagonal
369860.687181
Surface area
410390783766
Volume
17888318678184291
Space diagonal
452984.9797543
Perimeter
784593
Area
29617403685.03
Altitude
226492.48987715
Surface area
29617403685.03
Volume
2.1081585735617E+15
Height
123286.895727