1985890 is an even 7-digits composite number following 1985889
and preceding 1985891 . In scientific notation, it is written as 1.985890 × 10^6.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 794352 positive integers (up to 1985890) that are relatively prime to 1985890.
1985890 has 8 divisors, whose sum is 3574620
The reverse of 1985890 is 0985891
Previous prime number is 5
Is Prime? no
Number parity even
Number length 7
Sum of Digits 40
Digital Root 4
Name
one million nine hundred eighty-five thousand eight hundred ninety
Scientific notation
1.985890 × 10^6
Engineering notation
1.985890 × 10^6
Prime Factorization
2 × 5 × 198589
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1985890
Product of the distinct prime numbers
The prime factorization of 1985890 is 2 × 5 × 198589.
Since it has a total of 3 prime factors.
7 , 5 , 50 , 96 , 10 , 889 , 5327 , 9936 , 17082 , 31882 , 565098 , 801893 , 723951 , 417476 , 84749508 , 67298168 , 861048682 , 559305006 , 4470261203 , 8640714132
n×2
3971780
n×3
5957670
n×4
7943560
n×5
9929450
n÷2
992945
n÷3
661963.33333333
n÷3
496472.5
n÷5
397178
n2
3943759092100
n3
7831871743410469000
n4
1.5553235776521E+25
n5
3.0887015396236E+31
2 √n
1409.216094146
3 √n
125.69511403334
4 √n
37.539527090068
5 √n
18.179881068984
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1985889
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1985890 can be divided by 8 positive divisors.
The sum of these divisors (counting 1985890) is 1, the average is 0.125.
Base
System
Value
2
Binary
111100100110101100010
3
Ternary
10201220010111
4
Quaternary
13210311202
5
Quinary
1002022030
6
Senary
110321534
8
Octal
7446542
10
Decimal
1985890
12
Duodecimal
7b92aa
16
Hexadecimal
1e4d62
20
Vigesimal
c84ea
36
Base36
16kbm
md5
72314b91b5a8ef42f311a1a147a93f1e
sha1
e5ecf1d11066744b0ade7dd5993a69818bb29b81
sha256
272ce8691ee8a683a87a977024917b541fa4bd4a4d593601c36aa0eb816adb4d
sha512
60ad0ae6107729ffaa11fc1d1c919fe7e142dac782f33c95fb9dc03f39b7da262c8dc9822bdfc9efbfedecd53e62e904aa96f6848560f60c8b727d1698bd46ae
ripemd-160
dc9bc3fb354c5df9dac7741a3548a010f0afdd34
Diameter
3971780
Circumference
12477714.869675
Area
12389684591269
Volume
3.2806067643941E+19
Surface area
49558738365077
Circumference
12477714.869675
Perimeter
7943560
Area
3943759092100
Diagonal
2808472.5713811
Surface area
23662554552600
Volume
7831871743410469000
Space diagonal
3439662.378243
Perimeter
5957670
Area
1707697780082.2
Altitude
1719831.1891215
Surface area
1707697780082.2
Volume
9.2299493652481E+17
Height
936157.5237937