1290985 is an odd 7-digits composite number following 1290984
and preceding 1290986 . In scientific notation, it is written as 1.290985 × 10^6.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 1032784 positive integers (up to 1290985) that are relatively prime to 1290985.
1290985 has 4 divisors, whose sum is 1549188
The reverse of 1290985 is 5890921
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 34
Digital Root 7
Name
one million two hundred ninety thousand nine hundred eighty-five
Scientific notation
1.290985 × 10^6
Engineering notation
1.290985 × 10^6
Prime Factorization
5 × 258197
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1290985
Product of the distinct prime numbers
The prime factorization of 1290985 is 5 × 258197.
Since it has a total of 2 prime factors.
1 , 6 , 37 , 57 , 249 , 299 , 6237 , 3893 , 38987 , 65513 , 173048 , 831582 , 4815924 , 6967171 , 3952784 , 88288845 , 178509506 , 649294384 , 5239238593 , 6838109474
n×2
2581970
n×3
3872955
n×4
5163940
n×5
6454925
n÷2
645492.5
n÷3
430328.33333333
n÷3
322746.25
n÷5
258197
n2
1666642270225
n3
2151610171226421625
n4
2.7776964569007E+24
n5
3.585964460412E+30
2 √n
1136.2152084883
3 √n
108.8864232323
4 √n
33.707791510098
5 √n
16.679546531035
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
-1290984
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 1290985 can be divided by 4 positive divisors.
The sum of these divisors (counting 1290985) is 1, the average is 0.25.
Base
System
Value
2
Binary
100111011001011101001
3
Ternary
2102120220021
4
Quaternary
10323023221
5
Quinary
312302420
6
Senary
43400441
8
Octal
4731351
10
Decimal
1290985
12
Duodecimal
523121
16
Hexadecimal
13b2e9
20
Vigesimal
81795
36
Base36
ro4p
md5
e09450310153d1e7d7ab42195e0a4395
sha1
e19b8b44ccb38a1741af4e02ae3bda9692c33c0b
sha256
3a57eacc8ceee85cad7d08b5f215c69aa98140dd6a4cf2869d3d8b1033ec66cd
sha512
dcb7b719d550ad1c04f349f3eb0aeeb0817845a7e850c1b2cdbaf5b449d48034b9218f1d5306bc23871d91e7dba8837c00c29dcb7221ef05dca2051cd29e8345
ripemd-160
2d858cf3f2a6d33c0e4753cc1d2f7957f600ed68
Diameter
2581970
Circumference
8111497.9837892
Area
5235911112301.1
Volume
9.012643609752E+18
Surface area
20943644449204
Circumference
8111497.9837892
Perimeter
5163940
Area
1666642270225
Diagonal
1825728.4958202
Surface area
9999853621350
Volume
2151610171226421625
Space diagonal
2236051.6118093
Perimeter
3872955
Area
721677272517.91
Altitude
1118025.8059047
Surface area
721677272517.91
Volume
2.5356969042403E+17
Height
608576.16527341