1288985 is an odd 7-digits composite number following 1288984
and preceding 1288986 . In scientific notation, it is written as 1.288985 × 10^6.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 1031184 positive integers (up to 1288985) that are relatively prime to 1288985.
1288985 has 4 divisors, whose sum is 1546788
The reverse of 1288985 is 5898821
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 41
Digital Root 5
Name
one million two hundred eighty-eight thousand nine hundred eighty-five
Scientific notation
1.288985 × 10^6
Engineering notation
1.288985 × 10^6
Prime Factorization
5 × 257797
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1288985
Product of the distinct prime numbers
The prime factorization of 1288985 is 5 × 257797.
Since it has a total of 2 prime factors.
6 , 5 , 58 , 42 , 284 , 127 , 7596 , 4686 , 33336 , 67892 , 256011 , 231254 , 1039704 , 3716923 , 29975265 , 72234007 , 883926232 , 988059962 , 551430813 , 2497961288
n×2
2577970
n×3
3866955
n×4
5155940
n×5
6444925
n÷2
644492.5
n÷3
429661.66666667
n÷3
322246.25
n÷5
257797
n2
1661482330225
n3
2141625801425071625
n4
2.7605235336499E+24
n5
3.5582734270217E+30
2 √n
1135.3347523968
3 √n
108.83016505177
4 √n
33.694728851808
5 √n
16.674375319236
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
-1288984
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 1288985 can be divided by 4 positive divisors.
The sum of these divisors (counting 1288985) is 1, the average is 0.25.
Base
System
Value
2
Binary
100111010101100011001
3
Ternary
2102111011012
4
Quaternary
10322230121
5
Quinary
312221420
6
Senary
43343305
8
Octal
4725431
10
Decimal
1288985
12
Duodecimal
521b35
16
Hexadecimal
13ab19
20
Vigesimal
81295
36
Base36
rml5
md5
608167e5e699a7ff74cd19239692204e
sha1
7d8b377d3b3fc60dfb19f1ce95c174419fd86e6c
sha256
0ef234f5e3da53378695804f54d7df6d1f443158d70ec66c3cf101b9bde52889
sha512
b284d3a0f0af6522e0efe0ff496ade85724423459d066882b86692d1305918c67b82d260b866d74dbe2c62cdb2b4a38150cc650b62dee9898421f1a209ffb6c2
ripemd-160
266cac19ee18ae823043642c8f6cacf386c75b0e
Diameter
2577970
Circumference
8098931.6131749
Area
5219700682704.1
Volume
8.9708211793271E+18
Surface area
20878802730816
Circumference
8098931.6131749
Perimeter
5155940
Area
1661482330225
Diagonal
1822900.0686955
Surface area
9968893981350
Volume
2141625801425071625
Space diagonal
2232587.5101942
Perimeter
3866955
Area
719442952956.91
Altitude
1116293.7550971
Surface area
719442952956.91
Volume
2.5239302115862E+17
Height
607633.35623183