665890 is an even 6-digits composite number following 665889
and preceding 665891 . In scientific notation, it is written as 6.65890 × 10^5.
The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors.
There are 250624 positive integers (up to 665890) that are relatively prime to 665890.
665890 has 16 divisors, whose sum is 1269432
The reverse of 665890 is 098566
Previous prime number is 17
Is Prime? no
Number parity even
Number length 6
Sum of Digits 34
Digital Root 7
Name
six hundred sixty-five thousand eight hundred ninety
Scientific notation
6.65890 × 10^5
Engineering notation
6.65890 × 10^3
Prime Factorization
2 × 5 × 17 × 3917
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
665890
Product of the distinct prime numbers
The prime factorization of 665890 is 2 × 5 × 17 × 3917.
Since it has a total of 4 prime factors.
1 , 6 , 52 , 27 , 195 , 375 , 9951 , 3973 , 62628 , 66834 , 456287 , 210484 , 7265402 , 8886346 , 54935029 , 23105260 , 898519527 , 537164275 , 6780463339 , 1425404956
n×2
1331780
n×3
1997670
n×4
2663560
n×5
3329450
n÷2
332945
n÷3
221963.33333333
n÷3
166472.5
n÷5
133178
n2
443409492100
n3
295261946694469000
n4
1.9661197768438E+23
n5
1.3092194982025E+29
2 √n
816.02083306739
3 √n
87.32410924988
4 √n
28.566078363461
5 √n
14.611018767159
1 , 2 , 5 , 10 , 17 , 34 , 85 , 170 , 3917 , 7834 , 19585 , 39170 , 66589 , 133178 , 332945 , 665890
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-665889
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 665890 can be divided by 16 positive divisors.
The sum of these divisors (counting 665890) is 1, the average is 0.0625.
Base
System
Value
2
Binary
10100010100100100010
3
Ternary
1020211102121
4
Quaternary
2202210202
5
Quinary
132302030
6
Senary
22134454
8
Octal
2424442
10
Decimal
665890
12
Duodecimal
28142a
16
Hexadecimal
a2922
20
Vigesimal
434ea
36
Base36
e9sy
md5
3580ec7cd9826a9a24cd5cd79d5f0741
sha1
0d10316b07b75441b824c302970a2fc064950905
sha256
ba610c302bef2d939717d3f4f6c3deef330ea13e911dc146bf49d8bdc95c9136
sha512
96ba8054dc7e34e0c849e6cda2d2a5a1772e42d7fd7462ee99b62f253815aacabe2d3039871fe78e4eea8f11af665978332e8fc37f82fde1b4049076b5cd11b0
ripemd-160
03f1eac9ddee63d12b0336e1dfc88ce7fca7f2a8
Diameter
1331780
Circumference
4183910.2641978
Area
1393012002913.3
Volume
1.23679035016E+18
Surface area
5572048011653.4
Circumference
4183910.2641978
Perimeter
2663560
Area
443409492100
Diagonal
941710.66904862
Surface area
2660456952600
Volume
295261946694469000
Space diagonal
1153355.312252
Perimeter
1997670
Area
192001942218.88
Altitude
576677.65612602
Surface area
192001942218.88
Volume
3.4796954122333E+16
Height
313903.55634954