1280906 is an even 7-digits composite number following 1280905
and preceding 1280907 . In scientific notation, it is written as 1.280906 × 10^6.
The sum of its digits is 26. It has a total of 4 prime factors and 16 positive divisors.
There are 566280 positive integers (up to 1280906) that are relatively prime to 1280906.
1280906 has 16 divisors, whose sum is 1991040
The reverse of 1280906 is 6090821
Previous prime number is 121
Is Prime? no
Number parity even
Number length 7
Sum of Digits 26
Digital Root 8
Name
one million two hundred eighty thousand nine hundred six
Scientific notation
1.280906 × 10^6
Engineering notation
1.280906 × 10^6
Prime Factorization
2 × 67 × 121 × 79
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1280906
Product of the distinct prime numbers
The prime factorization of 1280906 is 2 × 67 × 121 × 79.
Since it has a total of 4 prime factors.
7 , 4 , 38 , 41 , 910 , 522 , 7212 , 3153 , 86875 , 43317 , 816134 , 311463 , 35010 , 1802076 , 98345623 , 86220158 , 720118832 , 211985341 , 1891087750 , 1911193257
n×2
2561812
n×3
3842718
n×4
5123624
n×5
6404530
n÷2
640453
n÷3
426968.66666667
n÷3
320226.5
n÷5
256181.2
n2
1640720180836
n3
2101608323953917416
n4
2.6919627118025E+24
n5
3.4481511893241E+30
2 √n
1131.7711782865
3 √n
108.60231593834
4 √n
33.64180700091
5 √n
16.653420647217
1 , 2 , 67 , 79 , 121 , 134 , 158 , 242 , 5293 , 8107 , 9559 , 10586 , 16214 , 19118 , 640453 , 1280906
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
-1280905
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 1280906 can be divided by 16 positive divisors.
The sum of these divisors (counting 1280906) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100111000101110001010
3
Ternary
2102002001222
4
Quaternary
10320232022
5
Quinary
311442111
6
Senary
43242042
8
Octal
4705612
10
Decimal
1280906
12
Duodecimal
519322
16
Hexadecimal
138b8a
20
Vigesimal
80256
36
Base36
rgcq
md5
8edac418f9773b744843f222db353f60
sha1
ab003f699d09e0af430c0ab75ce8f3605442adfc
sha256
9c1bb9a33208a1c4ba698cc44d4dd1a9d5ad5c5eb2f04bc25ccd86da353f3a19
sha512
f296dbf4018f4a06424765688a2911c192af1d1ed0f0441726d04e3e30c8ea53fdd1eb4a3868de5d674873aba4daefe83421831b6b4f05908cc2a20f8c93a0f0
ripemd-160
47a6454616ef5ffb159518cb6470520e9939c552
Diameter
2561812
Circumference
8048169.7590782
Area
5154474466710.9
Volume
8.8031963616757E+18
Surface area
20617897866844
Circumference
8048169.7590782
Perimeter
5123624
Area
1640720180836
Diagonal
1811474.6373251
Surface area
9844321085016
Volume
2101608323953917416
Space diagonal
2218594.2717198
Perimeter
3842718
Area
710452678552.89
Altitude
1109297.1358599
Surface area
710452678552.89
Volume
2.4767691621098E+17
Height
603824.87910836