1291390 is an even 7-digits composite number following 1291389
and preceding 1291391 . In scientific notation, it is written as 1.291390 × 10^6.
The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors.
There are 510400 positive integers (up to 1291390) that are relatively prime to 1291390.
1291390 has 16 divisors, whose sum is 2352240
The reverse of 1291390 is 0931921
Previous prime number is 89
Is Prime? no
Number parity even
Number length 7
Sum of Digits 25
Digital Root 7
Name
one million two hundred ninety-one thousand three hundred ninety
Scientific notation
1.291390 × 10^6
Engineering notation
1.291390 × 10^6
Prime Factorization
2 × 5 × 89 × 1451
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1291390
Product of the distinct prime numbers
The prime factorization of 1291390 is 2 × 5 × 89 × 1451.
Since it has a total of 4 prime factors.
6 , 4 , 64 , 78 , 211 , 768 , 6875 , 3171 , 86025 , 10664 , 826063 , 383726 , 5227482 , 2894968 , 37443084 , 43362242 , 368564925 , 261620630 , 9803300636 , 1008624277
n×2
2582780
n×3
3874170
n×4
5165560
n×5
6456950
n÷2
645695
n÷3
430463.33333333
n÷3
322847.5
n÷5
258278
n2
1667688132100
n3
2153635776912619000
n4
2.7811837059472E+24
n5
3.5915928260231E+30
2 √n
1136.3934177916
3 √n
108.89780843836
4 √n
33.710434850229
5 √n
16.680592921012
1 , 2 , 5 , 10 , 89 , 178 , 445 , 890 , 1451 , 2902 , 7255 , 14510 , 129139 , 258278 , 645695 , 1291390
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
-1291389
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 1291390 can be divided by 16 positive divisors.
The sum of these divisors (counting 1291390) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100111011010001111110
3
Ternary
2102121110021
4
Quaternary
10323101332
5
Quinary
312311030
6
Senary
43402354
8
Octal
4732176
10
Decimal
1291390
12
Duodecimal
5233ba
16
Hexadecimal
13b47e
20
Vigesimal
8189a
36
Base36
rofy
md5
dcdfd86de424cf57cbd31153fb208c5d
sha1
7075806e894b36ebc29780bf3a135ec171648e7a
sha256
e97e8a1bd386ba46d3edba998b610bc27a0a060f439c4e155fad401247872bd7
sha512
84d6ed8cf7bd68dfc6e5fe988162016ff63b661728281681ad19bf2d2f2d92838279d7ce802617dc924db282ca32a0425c1f41854aad5eec13ec9221ed4a63ef
ripemd-160
62f7d7312990c47206bf30527ee76d09695a976d
Diameter
2582780
Circumference
8114042.6738386
Area
5239196784284.2
Volume
9.0211284470091E+18
Surface area
20956787137137
Circumference
8114042.6738386
Perimeter
5165560
Area
1667688132100
Diagonal
1826301.252313
Surface area
10006128792600
Volume
2153635776912619000
Space diagonal
2236753.0923864
Perimeter
3874170
Area
722130143994.21
Altitude
1118376.5461932
Surface area
722130143994.21
Volume
2.5380841034348E+17
Height
608767.08410433