1291248291 is an odd 10-digits composite number following 1291248290
and preceding 1291248292 . In scientific notation, it is written as 1.291248291 × 10^9.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 860832192 positive integers (up to 1291248291) that are relatively prime to 1291248291.
1291248291 has 4 divisors, whose sum is 1721664392
The reverse of 1291248291 is 1928421921
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 39
Digital Root 3
Name
one billion two hundred ninety-one million two hundred forty-eight thousand two hundred ninety-one
Scientific notation
1.291248291 × 10^9
Engineering notation
1.291248291 × 10^9
Prime Factorization
3 × 430416097
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1291248291
Product of the distinct prime numbers
The prime factorization of 1291248291 is 3 × 430416097.
Since it has a total of 2 prime factors.
5 , 7 , 31 , 12 , 522 , 533 , 8262 , 3550 , 42465 , 76476 , 714 , 967047 , 1960250 , 3570993 , 46180496 , 6347349 , 822964864 , 904219669 , 5021836270 , 7189201369
n×2
2582496582
n×3
3873744873
n×4
5164993164
n×5
6456241455
n÷2
645624145.5
n÷3
430416097
n÷3
322812072.75
n÷5
258249658.2
n2
1667322149010420681
n3
2.1529268754562E+27
n4
2.7799631485807E+36
n5
3.5896226646478E+45
2 √n
35933.943437925
3 √n
1088.9382503959
4 √n
189.56250535885
5 √n
66.405179036255
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
-1291248290
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 1291248291 can be divided by 4 positive divisors.
The sum of these divisors (counting 1291248291) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111101101110001010100011
3
Ternary
10022222201012122210
4
Quaternary
1030331232022203
5
Quinary
10121024421131
6
Senary
332043533203
8
Octal
11475561243
10
Decimal
1291248291
12
Duodecimal
30052a203
16
Hexadecimal
4cf6e2a3
20
Vigesimal
103a60eb
36
Base36
lcrxk3
md5
95892b723c1759fad10d9815974bb605
sha1
6e5ab7f4c6c3bc90c741f69d579a85a9204d3eef
sha256
5adee49635b8349841b123531b8d2e7069b1900d25f766727b761cedb423c6f8
sha512
99bb75193abe8dde6d5996d02d09ebc213d7a2ed5451541d6ecd0600d751d77ce5248f845a5f8b2bab567d5501d607b7f2d4895de7992c45cb90c0ec9f6b79a7
ripemd-160
8f32a2f7dc9522e5e27cb21f95e5c0caaec2d68b
Diameter
2582496582
Circumference
8113152289.932
Area
5.2380470144987E+18
Volume
9.0181590075321E+27
Surface area
2.0952188057995E+19
Circumference
8113152289.932
Perimeter
5164993164
Area
1667322149010420681
Diagonal
1826100845.5233
Surface area
1.0003932894063E+19
Volume
2.1529268754562E+27
Space diagonal
2236507645.1985
Perimeter
3873744873
Area
7.2197166866774E+17
Altitude
1118253822.5992
Surface area
7.2197166866774E+17
Volume
2.5372486550564E+26
Height
608700281.84109