66490 is an even 5-digits composite number following 66489
and preceding 66491 . In scientific notation, it is written as 6.6490 × 10^4.
The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors.
There are 25920 positive integers (up to 66490) that are relatively prime to 66490.
66490 has 16 divisors, whose sum is 122760
The reverse of 66490 is 09466
Previous prime number is 109
Is Prime? no
Number parity even
Number length 5
Sum of Digits 25
Digital Root 7
Name
sixty-six thousand four hundred ninety
Scientific notation
6.6490 × 10^4
Engineering notation
6.6490 × 10^3
Prime Factorization
2 × 5 × 109 × 61
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
66490
Product of the distinct prime numbers
The prime factorization of 66490 is 2 × 5 × 109 × 61.
Since it has a total of 4 prime factors.
2 , 4 , 68 , 79 , 18 , 266 , 4102 , 9800 , 7530 , 80963 , 410486 , 330696 , 3784372 , 1486755 , 75796237 , 38123642 , 213456792 , 170098642 , 537905839 , 1835043942
n×2
132980
n×3
199470
n×4
265960
n×5
332450
n÷2
33245
n÷3
22163.333333333
n÷3
16622.5
n÷5
13298
n2
4420920100
n3
293946977449000
n4
1.9544534530584E+19
n5
1.2995161009385E+24
2 √n
257.85654926722
3 √n
40.512164206696
4 √n
16.057912357066
5 √n
9.216186754232
1 , 2 , 5 , 10 , 61 , 109 , 122 , 218 , 305 , 545 , 610 , 1090 , 6649 , 13298 , 33245 , 66490
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
-66489
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 66490 can be divided by 16 positive divisors.
The sum of these divisors (counting 66490) is 1, the average is 0.0625.
Base
System
Value
2
Binary
10000001110111010
3
Ternary
10101012121
4
Quaternary
100032322
5
Quinary
4111430
6
Senary
1231454
8
Octal
201672
10
Decimal
66490
12
Duodecimal
3258a
16
Hexadecimal
103ba
20
Vigesimal
864a
36
Base36
1fay
md5
1da36fd1cd911e8f6606051e5402a127
sha1
91b5e2daf01d9c1bc658d14e00afcca04654e385
sha256
e6431eb779f81aea1fa5d2800f1417abd3fd07bb2219f017224b55e297ea26b3
sha512
be152f67705629279fe9423b0923a61e4c18cd35e8412be2f3446144134f74feafd1b024565e2d2f74b5738ed6007cc1b06bff83365d519b9e12baaee78da8d3
ripemd-160
7851430a12972332e5029632f9c6a22a18cfe6f7
Diameter
132980
Circumference
417768.99107437
Area
13888730108.267
Volume
1.2312822198649E+15
Surface area
55554920433.07
Circumference
417768.99107437
Perimeter
265960
Area
4420920100
Diagonal
94031.059762187
Surface area
26525520600
Volume
293946977449000
Space diagonal
115164.05819525
Perimeter
199470
Area
1914314557.3506
Altitude
57582.029097627
Surface area
1914314557.3506
Volume
34641983510580
Height
31343.686587396