1285989 is an odd 7-digits composite number following 1285988
and preceding 1285990 . In scientific notation, it is written as 1.285989 × 10^6.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 857324 positive integers (up to 1285989) that are relatively prime to 1285989.
1285989 has 4 divisors, whose sum is 1714656
The reverse of 1285989 is 9895821
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 42
Digital Root 6
Name
one million two hundred eighty-five thousand nine hundred eighty-nine
Scientific notation
1.285989 × 10^6
Engineering notation
1.285989 × 10^6
Prime Factorization
3 × 428663
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1285989
Product of the distinct prime numbers
The prime factorization of 1285989 is 3 × 428663.
Since it has a total of 2 prime factors.
5 , 6 , 90 , 74 , 419 , 736 , 2637 , 1682 , 75548 , 28460 , 233603 , 74019 , 4658545 , 3894648 , 79844149 , 43062595 , 451423904 , 397165508 , 7515365812 , 5456754889
n×2
2571978
n×3
3857967
n×4
5143956
n×5
6429945
n÷2
642994.5
n÷3
428663
n÷3
321497.25
n÷5
257197.8
n2
1653767708121
n3
2126727081198816669
n4
2.7349476324238E+24
n5
3.517112570873E+30
2 √n
1134.0145501712
3 √n
108.74578131343
4 √n
33.675132518985
5 √n
16.666616821035
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
-1285988
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 1285989 can be divided by 4 positive divisors.
The sum of these divisors (counting 1285989) is 1, the average is 0.25.
Base
System
Value
2
Binary
100111001111101100101
3
Ternary
2102100001020
4
Quaternary
10321331211
5
Quinary
312122424
6
Senary
43321353
8
Octal
4717545
10
Decimal
1285989
12
Duodecimal
520259
16
Hexadecimal
139f65
20
Vigesimal
80ej9
36
Base36
rk9x
md5
29fae03aaafa84ab41719952f5939298
sha1
4de2532f075a11eb8d18edd6f226e848dcf2037c
sha256
c384f22fce65df7fb4f8bea55c4c8d5ea4a359362ee22ff18067b1d4b63989ca
sha512
09ae51cddbd9b2a9657e0e30eaa76f76bf885426f55e0130e738128853bfb62dbd713b8c67f28e9bb40ec30eaef35e9713ea74b44ab943cd48ccff9c9a72b790
ripemd-160
8406c8c60bd4e62a7a88daaae930aa6e58b98de2
Diameter
2571978
Circumference
8080107.1899946
Area
5195464482577
Volume
8.9084135659796E+18
Surface area
20781857930308
Circumference
8080107.1899946
Perimeter
5143956
Area
1653767708121
Diagonal
1818663.0848626
Surface area
9922606248726
Volume
2126727081198816669
Space diagonal
2227398.2859747
Perimeter
3857967
Area
716102423595.58
Altitude
1113699.1429873
Surface area
716102423595.58
Volume
2.5063719014146E+17
Height
606221.02828754