1291237442 is an even 10-digits composite number following 1291237441
and preceding 1291237443 . In scientific notation, it is written as 1.291237442 × 10^9.
The sum of its digits is 35. It has a total of 4 prime factors and 16 positive divisors.
There are 582702240 positive integers (up to 1291237442) that are relatively prime to 1291237442.
1291237442 has 16 divisors, whose sum is 2128140000
The reverse of 1291237442 is 2447321921
Previous prime number is 139
Is Prime? no
Number parity even
Number length 10
Sum of Digits 35
Digital Root 8
Name
one billion two hundred ninety-one million two hundred thirty-seven thousand four hundred forty-two
Scientific notation
1.291237442 × 10^9
Engineering notation
1.291237442 × 10^9
Prime Factorization
2 × 11 × 139 × 422249
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1291237442
Product of the distinct prime numbers
The prime factorization of 1291237442 is 2 × 11 × 139 × 422249.
Since it has a total of 4 prime factors.
6 , 7 , 15 , 2 , 997 , 94 , 9354 , 1591 , 40540 , 74724 , 964747 , 245110 , 4805500 , 1811561 , 55584483 , 75521432 , 514507210 , 455254777 , 2208721647 , 9770246961
n×2
2582474884
n×3
3873712326
n×4
5164949768
n×5
6456187210
n÷2
645618721
n÷3
430412480.66667
n÷3
322809360.5
n÷5
258247488.4
n2
1667294131622703364
n3
2.1528726095781E+27
n4
2.7798697213435E+36
n5
3.5894718680808E+45
2 √n
35933.79248006
3 √n
1088.9352006534
4 √n
189.56210718406
5 √n
66.405067449318
1 , 2 , 11 , 22 , 139 , 278 , 1529 , 3058 , 422249 , 844498 , 4644739 , 9289478 , 58692611 , 117385222 , 645618721 , 1291237442
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1291237441
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1291237442 can be divided by 16 positive divisors.
The sum of these divisors (counting 1291237442) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100111101101011100001000010
3
Ternary
10022222200122202222
4
Quaternary
1030331223201002
5
Quinary
10121024044232
6
Senary
332043411042
8
Octal
11475534102
10
Decimal
1291237442
12
Duodecimal
300523a82
16
Hexadecimal
4cf6b842
20
Vigesimal
103a4dc2
36
Base36
lcrp6q
md5
9fbd46b8e2ad96add5e21e37c52326b9
sha1
8ad48e4e239e2f53ef4a3017bc1c79817457c8b5
sha256
0deadd6debadf1252a0140d0c16d8a4f3981111ced0ed80eeb8691d08da5d445
sha512
72a0924348ada62108fdec88220c3d0b9d3ec6aad15fd95d3c6a1f462b00d2a0d1346812ccc565a9f49a8d49f1d2c6fe2243c6094bbc59f79b85419feaf04502
ripemd-160
f5b3dbbd91e496e0f6a8f5bbc56c87e869b97ae1
Diameter
2582474884
Circumference
8113084123.6546
Area
5.2379589952793E+18
Volume
9.0179316991537E+27
Surface area
2.0951835981117E+19
Circumference
8113084123.6546
Perimeter
5164949768
Area
1667294131622703364
Diagonal
1826085502.7203
Surface area
1.0003764789736E+19
Volume
2.1528726095781E+27
Space diagonal
2236488854.1793
Perimeter
3873712326
Area
7.2195953678299E+17
Altitude
1118244427.0896
Surface area
7.2195953678299E+17
Volume
2.5371847021058E+26
Height
608695167.57345