1291285 is an odd 7-digits composite number following 1291284
and preceding 1291286 . In scientific notation, it is written as 1.291285 × 10^6.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 1022400 positive integers (up to 1291285) that are relatively prime to 1291285.
1291285 has 8 divisors, whose sum is 1565496
The reverse of 1291285 is 5821921
Previous prime number is 101
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 28
Digital Root 1
Name
one million two hundred ninety-one thousand two hundred eighty-five
Scientific notation
1.291285 × 10^6
Engineering notation
1.291285 × 10^6
Prime Factorization
5 × 101 × 2557
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1291285
Product of the distinct prime numbers
The prime factorization of 1291285 is 5 × 101 × 2557.
Since it has a total of 3 prime factors.
2 , 3 , 40 , 60 , 676 , 27 , 3403 , 7217 , 81773 , 4892 , 214056 , 327435 , 4059863 , 6607767 , 12156157 , 30656467 , 183051460 , 753502111 , 5949949964 , 1229263421
n×2
2582570
n×3
3873855
n×4
5165140
n×5
6456425
n÷2
645642.5
n÷3
430428.33333333
n÷3
322821.25
n÷5
258257
n2
1667416951225
n3
2153110497862574125
n4
2.7802792892325E+24
n5
3.5901329419966E+30
2 √n
1136.3472180632
3 √n
108.89485694687
4 √n
33.709749599533
5 √n
16.680321659933
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
-1291284
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 1291285 can be divided by 8 positive divisors.
The sum of these divisors (counting 1291285) is 1, the average is 0.125.
Base
System
Value
2
Binary
100111011010000010101
3
Ternary
2102121022101
4
Quaternary
10323100111
5
Quinary
312310120
6
Senary
43402101
8
Octal
4732025
10
Decimal
1291285
12
Duodecimal
523331
16
Hexadecimal
13b415
20
Vigesimal
81845
36
Base36
rod1
md5
094af54285d7447fc67038d7acff568e
sha1
033b66e32d84da1fc4fbb6715cdf752f01c161a9
sha256
ea39446f3f22c33279ebf7e90b4ecb89223f77e6a97f45f9f1489657e9f53a06
sha512
5a4d539d6eb49a1155ce7438f787b12f804af5fe7b20be0aeff2148702534faf1ed62f560c964dac8d30688c785f61bd890298d72ad41c2edf42b17001dbc904
ripemd-160
f8c43ee18b8f510194a8e5199492ff7a46fe1c41
Diameter
2582570
Circumference
8113382.9393814
Area
5238344844439.6
Volume
9.0189281632695E+18
Surface area
20953379377758
Circumference
8113382.9393814
Perimeter
5165140
Area
1667416951225
Diagonal
1826152.7598889
Surface area
10004501707350
Volume
2153110497862574125
Space diagonal
2236571.2270516
Perimeter
3873855
Area
722012719230.82
Altitude
1118285.6135258
Surface area
722012719230.82
Volume
2.5374650561376E+17
Height
608717.58662965