1291288 is an even 7-digits composite number following 1291287
and preceding 1291289 . In scientific notation, it is written as 1.291288 × 10^6.
The sum of its digits is 31. It has a total of 4 prime factors and 8 positive divisors.
There are 645640 positive integers (up to 1291288) that are relatively prime to 1291288.
1291288 has 8 divisors, whose sum is 2421180
The reverse of 1291288 is 8821921
Previous prime number is 2
Is Prime? no
Number parity even
Number length 7
Sum of Digits 31
Digital Root 4
Name
one million two hundred ninety-one thousand two hundred eighty-eight
Scientific notation
1.291288 × 10^6
Engineering notation
1.291288 × 10^6
Prime Factorization
2 × 2 × 2 × 161411
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
322822
Product of the distinct prime numbers
The prime factorization of 1291288 is 2 × 2 × 2 × 161411.
Since it has a total of 4 prime factors.
9 , 7 , 96 , 88 , 117 , 940 , 7001 , 9644 , 37280 , 80526 , 132882 , 771266 , 2462448 , 3854395 , 38060909 , 87139887 , 971980306 , 989071924 , 5308842269 , 4959157248
n×2
2582576
n×3
3873864
n×4
5165152
n×5
6456440
n÷2
645644
n÷3
430429.33333333
n÷3
322822
n÷5
258257.6
n2
1667424698944
n3
2153125504649999872
n4
2.7803051266485E+24
n5
3.5901746463797E+30
2 √n
1136.3485380815
3 √n
108.89494127742
4 √n
33.709769178704
5 √n
16.680329410494
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1291287
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1291288 can be divided by 8 positive divisors.
The sum of these divisors (counting 1291288) is 1, the average is 0.125.
Base
System
Value
2
Binary
100111011010000011000
3
Ternary
2102121022111
4
Quaternary
10323100120
5
Quinary
312310123
6
Senary
43402104
8
Octal
4732030
10
Decimal
1291288
12
Duodecimal
523334
16
Hexadecimal
13b418
20
Vigesimal
81848
36
Base36
rod4
md5
e294679501e59f81f6e4ddcb3904845a
sha1
4568a08791ef66a807004e1c1c77b870172a01cc
sha256
5e9de0825308a4aee80907c89b2235ee2a7b068376c790f9ebf3414996274592
sha512
d994d1e404529d6daa76948905b70c22c61e8cf68c0bf3eeeafec70b870b745b1e0c6b467334b14cec8edc097c2793bafd4191a491eeb12923df44235ac81fae
ripemd-160
347374c1721a627fe362021efed08801c77405c0
Diameter
2582576
Circumference
8113401.7889373
Area
5238369184616.6
Volume
9.0189910235537E+18
Surface area
20953476738467
Circumference
8113401.7889373
Perimeter
5165152
Area
1667424698944
Diagonal
1826157.0025296
Surface area
10004548193664
Volume
2153125504649999872
Space diagonal
2236576.423204
Perimeter
3873864
Area
722016074091.56
Altitude
1118288.211602
Surface area
722016074091.56
Volume
2.5374827418062E+17
Height
608719.00084321