1291256 is an even 7-digits composite number following 1291255
and preceding 1291257 . In scientific notation, it is written as 1.291256 × 10^6.
The sum of its digits is 26. It has a total of 4 prime factors and 8 positive divisors.
There are 645624 positive integers (up to 1291256) that are relatively prime to 1291256.
1291256 has 8 divisors, whose sum is 2421120
The reverse of 1291256 is 6521921
Previous prime number is 2
Is Prime? no
Number parity even
Number length 7
Sum of Digits 26
Digital Root 8
Name
one million two hundred ninety-one thousand two hundred fifty-six
Scientific notation
1.291256 × 10^6
Engineering notation
1.291256 × 10^6
Prime Factorization
2 × 2 × 2 × 161407
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
322814
Product of the distinct prime numbers
The prime factorization of 1291256 is 2 × 2 × 2 × 161407.
Since it has a total of 4 prime factors.
2 , 8 , 33 , 25 , 322 , 674 , 4569 , 4463 , 90587 , 52358 , 398346 , 855293 , 4206586 , 699732 , 11069763 , 23145647 , 976314158 , 155140805 , 3528418475 , 6830371349
n×2
2582512
n×3
3873768
n×4
5165024
n×5
6456280
n÷2
645628
n÷3
430418.66666667
n÷3
322814
n÷5
258251.2
n2
1667342057536
n3
2152965435845705216
n4
2.7800295368284E+24
n5
3.5897298196069E+30
2 √n
1136.3344578072
3 √n
108.89404174483
4 √n
33.709560332452
5 √n
16.680246737097
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
-1291255
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 1291256 can be divided by 8 positive divisors.
The sum of these divisors (counting 1291256) is 1, the average is 0.125.
Base
System
Value
2
Binary
100111011001111111000
3
Ternary
2102121021022
4
Quaternary
10323033320
5
Quinary
312310011
6
Senary
43402012
8
Octal
4731770
10
Decimal
1291256
12
Duodecimal
523308
16
Hexadecimal
13b3f8
20
Vigesimal
8182g
36
Base36
roc8
md5
a41b4c354f684e09b767939c7a62d7a5
sha1
72abd29a29c6c66a9db1d827aac3c586cf29f077
sha256
28446d5014c51abb9c652f53073cac4f92af3587204e27e72b2c84476016c39e
sha512
0b072bfda13aaa2a0dfe009f2eedd63958ba23df877b6534a386dffb8f6ddddcc4bb0dff85fdaab3b580e99313a18ab1304ed32dbcbe929931872686687eba09
ripemd-160
174b6d0cdb2f95f7a100e0fb28dbcf406c35ef8d
Diameter
2582512
Circumference
8113200.7270075
Area
5238109558976.4
Volume
9.0183205289142E+18
Surface area
20952438235906
Circumference
8113200.7270075
Perimeter
5165024
Area
1667342057536
Diagonal
1826111.7476956
Surface area
10004052345216
Volume
2152965435845705216
Space diagonal
2236520.9975782
Perimeter
3873768
Area
721980289312.2
Altitude
1118260.4987891
Surface area
721980289312.2
Volume
2.5372940989112E+17
Height
608703.91589854