1280138 is an even 7-digits composite number following 1280137
and preceding 1280139 . In scientific notation, it is written as 1.280138 × 10^6.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 640068 positive integers (up to 1280138) that are relatively prime to 1280138.
1280138 has 4 divisors, whose sum is 1920210
The reverse of 1280138 is 8310821
Previous prime number is 2
Is Prime? no
Number parity even
Number length 7
Sum of Digits 23
Digital Root 5
Name
one million two hundred eighty thousand one hundred thirty-eight
Scientific notation
1.280138 × 10^6
Engineering notation
1.280138 × 10^6
Prime Factorization
2 × 640069
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1280138
Product of the distinct prime numbers
The prime factorization of 1280138 is 2 × 640069.
Since it has a total of 2 prime factors.
6 , 6 , 29 , 55 , 749 , 399 , 9987 , 3541 , 14211 , 13041 , 118686 , 837739 , 3923745 , 9559240 , 65437883 , 46106649 , 251393415 , 352915276 , 2965245726 , 3649650760
n×2
2560276
n×3
3840414
n×4
5120552
n×5
6400690
n÷2
640069
n÷3
426712.66666667
n÷3
320034.5
n÷5
256027.6
n2
1638753299044
n3
2097830370731588072
n4
2.6855123751276E+24
n5
3.4378264408711E+30
2 √n
1131.4318362146
3 √n
108.5806064989
4 √n
33.636763164945
5 √n
16.651423171126
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1280137
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1280138 can be divided by 4 positive divisors.
The sum of these divisors (counting 1280138) is 1, the average is 0.25.
Base
System
Value
2
Binary
100111000100010001010
3
Ternary
2102001000112
4
Quaternary
10320202022
5
Quinary
311431023
6
Senary
43234322
8
Octal
4704212
10
Decimal
1280138
12
Duodecimal
5189a2
16
Hexadecimal
13888a
20
Vigesimal
8006i
36
Base36
rfre
md5
bc6e0484cb57c89033e8e61f858938f9
sha1
bcf13fcdbc38d84cb355bbca67c3aacd9e3aacae
sha256
cc1917d1c23bde75d0d7b20a6c8b09fc2f9e052822d5ae33dec6fd3aa64dc91f
sha512
649f8b150a68a869a227a75efd21d681f514ed0fd102e2083094fde5ebfd7bbf766a79fb29f2a1d6b55e060572f22862bdcae5f3ce3b2594d3098335a655a470
ripemd-160
18b4ccb39e7850243deac006e455e68710ada885
Diameter
2560276
Circumference
8043344.2727623
Area
5148295325322.7
Volume
8.7873713082239E+18
Surface area
20593181301291
Circumference
8043344.2727623
Perimeter
5120552
Area
1638753299044
Diagonal
1810388.5213092
Surface area
9832519794264
Volume
2097830370731588072
Space diagonal
2217264.0566996
Perimeter
3840414
Area
709600993753.83
Altitude
1108632.0283498
Surface area
709600993753.83
Volume
2.472316801539E+17
Height
603462.84043639