1291240243 is an odd 10-digits composite number following 1291240242
and preceding 1291240244 . In scientific notation, it is written as 1.291240243 × 10^9.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 1284685528 positive integers (up to 1291240243) that are relatively prime to 1291240243.
1291240243 has 4 divisors, whose sum is 1297794960
The reverse of 1291240243 is 3420421921
Previous prime number is 197
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 28
Digital Root 1
Name
one billion two hundred ninety-one million two hundred forty thousand two hundred forty-three
Scientific notation
1.291240243 × 10^9
Engineering notation
1.291240243 × 10^9
Prime Factorization
197 × 6554519
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1291240243
Product of the distinct prime numbers
The prime factorization of 1291240243 is 197 × 6554519.
Since it has a total of 2 prime factors.
10 , 9 , 30 , 79 , 482 , 383 , 5560 , 3903 , 70253 , 21117 , 13758 , 153243 , 9337880 , 6197068 , 39756785 , 14148973 , 128307826 , 81769373 , 6429177896 , 2429770060
n×2
2582480486
n×3
3873720729
n×4
5164960972
n×5
6456201215
n÷2
645620121.5
n÷3
430413414.33333
n÷3
322810060.75
n÷5
258248048.6
n2
1667301365142699049
n3
2.1528866198811E+27
n4
2.7798938422067E+36
n5
3.5895108003252E+45
2 √n
35933.831454494
3 √n
1088.935988039
4 √n
189.56220998526
5 √n
66.405096258959
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
-1291240242
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 1291240243 can be divided by 4 positive divisors.
The sum of these divisors (counting 1291240243) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111101101100001100110011
3
Ternary
10022222200210121201
4
Quaternary
1030331230030303
5
Quinary
10121024141433
6
Senary
332043432031
8
Octal
11475541463
10
Decimal
1291240243
12
Duodecimal
300525617
16
Hexadecimal
4cf6c333
20
Vigesimal
103a50c3
36
Base36
lcrrcj
md5
6b1bd10b5e858d0b6936eec18cbcda00
sha1
d0d3d7c0fb290fa0e24e29797f78e30b4f936b9d
sha256
cfaced2193d96af32f328a093cf80684fb22b6c9c080a6e565c4b21c875dbf4d
sha512
b0c28910989f6424073dd1ce0a2b6a6479e3cc6f6287fc7bc093e5dcb50dab9678adc3f23eb7d8928c7af494444f087557a72d93b45869e44ebaf718a0ba28b6
ripemd-160
643d8403c11798f3f862bcde027626278fc6c444
Diameter
2582480486
Circumference
8113101722.8566
Area
5.2379817200525E+18
Volume
9.0179903853736E+27
Surface area
2.095192688021E+19
Circumference
8113101722.8566
Perimeter
5164960972
Area
1667301365142699049
Diagonal
1826089463.9325
Surface area
1.0003808190856E+19
Volume
2.1528866198811E+27
Space diagonal
2236493705.6536
Perimeter
3873720729
Area
7.2196266898903E+17
Altitude
1118246852.8268
Surface area
7.2196266898903E+17
Volume
2.5372012134062E+26
Height
608696487.97751