1291261 is an odd 7-digits composite number following 1291260
and preceding 1291262 . In scientific notation, it is written as 1.291261 × 10^6.
The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors.
There are 1288000 positive integers (up to 1291261) that are relatively prime to 1291261.
1291261 has 4 divisors, whose sum is 1294524
The reverse of 1291261 is 1621921
Previous prime number is 461
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 22
Digital Root 4
Name
one million two hundred ninety-one thousand two hundred sixty-one
Scientific notation
1.291261 × 10^6
Engineering notation
1.291261 × 10^6
Prime Factorization
461 × 2801
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1291261
Product of the distinct prime numbers
The prime factorization of 1291261 is 461 × 2801.
Since it has a total of 2 prime factors.
3 , 5 , 34 , 66 , 696 , 557 , 4069 , 5721 , 25103 , 93899 , 177051 , 996911 , 9022489 , 5614778 , 90522791 , 67526720 , 363070132 , 856736430 , 7130381497 , 1849244032
n×2
2582522
n×3
3873783
n×4
5165044
n×5
6456305
n÷2
645630.5
n÷3
430420.33333333
n÷3
322815.25
n÷5
258252.2
n2
1667354970121
n3
2152990446073412581
n4
2.7800725963872E+24
n5
3.5897993208835E+30
2 √n
1136.3366578616
3 √n
108.89418229778
4 √n
33.709592964935
5 √n
16.680259654923
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
-1291260
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 1291261 can be divided by 4 positive divisors.
The sum of these divisors (counting 1291261) is 1, the average is 0.25.
Base
System
Value
2
Binary
100111011001111111101
3
Ternary
2102121021111
4
Quaternary
10323033331
5
Quinary
312310021
6
Senary
43402021
8
Octal
4731775
10
Decimal
1291261
12
Duodecimal
523311
16
Hexadecimal
13b3fd
20
Vigesimal
81831
36
Base36
rocd
md5
248b2fd051b0f8eac23aedaecbf9d1c9
sha1
56f0b9c52ca370288d8013051adb75c059e95ad4
sha256
129293669be8a71c823024d30dd6ee931d38669a296e3575d14ac9ec272d50b1
sha512
b0fd80e03039d07e99dde5c6a1833db1f4d9edf18981f5bcf2ef0525ece7925bfafd23836817eb3e68e45635f50bb270e83ff0285bd82d12ab1f854013cef3b3
ripemd-160
82bbf41724bd653819481ac5125f6017cf03e977
Diameter
2582522
Circumference
8113232.142934
Area
5238150125058.6
Volume
9.018425291511E+18
Surface area
20952600500234
Circumference
8113232.142934
Perimeter
5165044
Area
1667354970121
Diagonal
1826118.8187634
Surface area
10004129820726
Volume
2152990446073412581
Space diagonal
2236529.6578322
Perimeter
3873783
Area
721985880625.51
Altitude
1118264.8289161
Surface area
721985880625.51
Volume
2.5373235737473E+17
Height
608706.27292115