1281243 is an odd 7-digits composite number following 1281242
and preceding 1281244 . In scientific notation, it is written as 1.281243 × 10^6.
The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors.
There are 854160 positive integers (up to 1281243) that are relatively prime to 1281243.
1281243 has 4 divisors, whose sum is 1708328
The reverse of 1281243 is 3421821
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 21
Digital Root 3
Name
one million two hundred eighty-one thousand two hundred forty-three
Scientific notation
1.281243 × 10^6
Engineering notation
1.281243 × 10^6
Prime Factorization
3 × 427081
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1281243
Product of the distinct prime numbers
The prime factorization of 1281243 is 3 × 427081.
Since it has a total of 2 prime factors.
1 , 2 , 74 , 8 , 838 , 999 , 7782 , 3970 , 58876 , 61335 , 575034 , 188819 , 4210496 , 6731923 , 22225825 , 73820059 , 156103502 , 73491681 , 7235237949 , 4937573225
n×2
2562486
n×3
3843729
n×4
5124972
n×5
6406215
n÷2
640621.5
n÷3
427081
n÷3
320310.75
n÷5
256248.6
n2
1641583625049
n3
2103267528508655907
n4
2.694796798029E+24
n5
3.4526895338971E+30
2 √n
1131.9200501802
3 √n
108.61183934632
4 √n
33.644019530672
5 √n
16.654296841447
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
-1281242
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 1281243 can be divided by 4 positive divisors.
The sum of these divisors (counting 1281243) is 1, the average is 0.25.
Base
System
Value
2
Binary
100111000110011011011
3
Ternary
2102002112110
4
Quaternary
10320303123
5
Quinary
311444433
6
Senary
43243403
8
Octal
4706333
10
Decimal
1281243
12
Duodecimal
519563
16
Hexadecimal
138cdb
20
Vigesimal
80323
36
Base36
rgm3
md5
ccb1f00c55de28b0354537c1a41fb8d9
sha1
03bef59fcb2b1ad451e94dfc9fa0d0709b7f3ede
sha256
55f07c9a10ca2c843fac97b5dc680b99cd61d171be553245540f5f484defbd14
sha512
f35fbdebba1f5d96121f436fa7912016faca7ff2a87149765f7f1b6d06de9f2027f0d56e6e1fb96c01a9ea1130931974021a77d8a605fd048cde28174cc6d727
ripemd-160
5898ae2be9fba9383d6fd778374d2edba43300b4
Diameter
2562486
Circumference
8050287.1925267
Area
5157187056707.2
Volume
8.8101464214623E+18
Surface area
20628748226829
Circumference
8050287.1925267
Perimeter
5124972
Area
1641583625049
Diagonal
1811951.2272956
Surface area
9849501750294
Volume
2103267528508655907
Space diagonal
2219177.972842
Perimeter
3843729
Area
710826560864.49
Altitude
1109588.986421
Surface area
710826560864.49
Volume
2.4787245534299E+17
Height
603983.74243186