1291385 is an odd 7-digits composite number following 1291384
and preceding 1291386 . In scientific notation, it is written as 1.291385 × 10^6.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 1033104 positive integers (up to 1291385) that are relatively prime to 1291385.
1291385 has 4 divisors, whose sum is 1549668
The reverse of 1291385 is 5831921
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 29
Digital Root 2
Name
one million two hundred ninety-one thousand three hundred eighty-five
Scientific notation
1.291385 × 10^6
Engineering notation
1.291385 × 10^6
Prime Factorization
5 × 258277
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1291385
Product of the distinct prime numbers
The prime factorization of 1291385 is 5 × 258277.
Since it has a total of 2 prime factors.
8 , 4 , 3 , 3 , 702 , 301 , 9748 , 2600 , 93422 , 69556 , 413428 , 138576 , 9061226 , 1989216 , 77591155 , 21722075 , 763941745 , 63425229 , 855749552 , 1490607402
n×2
2582770
n×3
3874155
n×4
5165540
n×5
6456925
n÷2
645692.5
n÷3
430461.66666667
n÷3
322846.25
n÷5
258277
n2
1667675218225
n3
2153610761687491625
n4
2.7811406334818E+24
n5
3.5915232969689E+30
2 √n
1136.3912178471
3 √n
108.89766789477
4 √n
33.710402220192
5 √n
16.680580004218
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
-1291384
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 1291385 can be divided by 4 positive divisors.
The sum of these divisors (counting 1291385) is 1, the average is 0.25.
Base
System
Value
2
Binary
100111011010001111001
3
Ternary
2102121110002
4
Quaternary
10323101321
5
Quinary
312311020
6
Senary
43402345
8
Octal
4732171
10
Decimal
1291385
12
Duodecimal
5233b5
16
Hexadecimal
13b479
20
Vigesimal
81895
36
Base36
roft
md5
0984ad5197fdd5e20223e6fce867b4fa
sha1
1cda79220e80fa95fbae237c7c301abec5979c0d
sha256
6311edc0fdf9faae4f16d2ed3f603759cfc3abaa2147b8392fd273aee37ef9b1
sha512
6f648be642704a6b1ff418b4285dd73df54de67e93ed115d3c04f3017dd23f9d1c139ac60e0b0044dbf11304647b7c3bb035a7b25b7805536d470afaabbdb911
ripemd-160
112424116f9704c810de7730535787047d05c345
Diameter
2582770
Circumference
8114011.2579121
Area
5239156214149.4
Volume
9.0210236634791E+18
Surface area
20956624856598
Circumference
8114011.2579121
Perimeter
5165540
Area
1667675218225
Diagonal
1826294.1812452
Surface area
10006051309350
Volume
2153610761687491625
Space diagonal
2236744.4321323
Perimeter
3874155
Area
722124552122.3
Altitude
1118372.2160662
Surface area
722124552122.3
Volume
2.5380546227093E+17
Height
608764.72708173