261091 is an odd 6-digits composite number following 261090
and preceding 261092 . In scientific notation, it is written as 2.61091 × 10^5.
The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors.
There are 259272 positive integers (up to 261091) that are relatively prime to 261091.
261091 has 4 divisors, whose sum is 262912
The reverse of 261091 is 190162
Previous prime number is 157
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 19
Digital Root 1
Name
two hundred sixty-one thousand ninety-one
Scientific notation
2.61091 × 10^5
Engineering notation
2.61091 × 10^3
Prime Factorization
157 × 1663
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
261091
Product of the distinct prime numbers
The prime factorization of 261091 is 157 × 1663.
Since it has a total of 2 prime factors.
7 , 2 , 14 , 22 , 322 , 460 , 5619 , 2973 , 58150 , 88567 , 272200 , 458267 , 1338079 , 6991401 , 31620773 , 6532551 , 718026804 , 705630799 , 8265471944 , 1939887809
n×2
522182
n×3
783273
n×4
1044364
n×5
1305455
n÷2
130545.5
n÷3
87030.333333333
n÷3
65272.75
n÷5
52218.2
n2
68168510281
n3
17798184517776571
n4
4.6469457939308E+21
n5
1.2132757242832E+27
2 √n
510.97064494939
3 √n
63.914191644011
4 √n
22.604659806097
5 √n
12.115975328738
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
-261090
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 261091 can be divided by 4 positive divisors.
The sum of these divisors (counting 261091) is 1, the average is 0.25.
Base
System
Value
2
Binary
111111101111100011
3
Ternary
111021011001
4
Quaternary
333233203
5
Quinary
31323331
6
Senary
5332431
8
Octal
775743
10
Decimal
261091
12
Duodecimal
107117
16
Hexadecimal
3fbe3
20
Vigesimal
1cceb
36
Base36
5lgj
md5
dde4a60cebe71927514e36041dc6c437
sha1
7ec0dd35e39c8e99e2b9f9f52073a0c207fa7f65
sha256
ebbdb31dff02e10f5f12ab8f978548cfcb69e1ef6ef53538e979ba57092f37a7
sha512
92478aaf62ac13daf22ec5af5b992b25095d32297d2efe651e7d91a6ed0ec569954ba67c28b7d505f4a744371554ece7d0a5884655497985f77d421027523e3f
ripemd-160
7e35eb5736244065383f6b65d4d2afb7766052a9
Diameter
522182
Circumference
1640483.1350368
Area
214157691104.95
Volume
7.4552860971043E+16
Surface area
856630764419.8
Circumference
1640483.1350368
Perimeter
1044364
Area
68168510281
Diagonal
369238.43321355
Surface area
409011061686
Volume
17798184517776571
Space diagonal
452222.87739897
Perimeter
783273
Area
29517830820.743
Altitude
226111.43869948
Surface area
29517830820.743
Volume
2.0975361608882E+15
Height
123079.47773785