66804985 is an odd 8-digits composite number following 66804984
and preceding 66804986 . In scientific notation, it is written as 6.6804985 × 10^7.
The sum of its digits is 46. It has a total of 4 prime factors and 16 positive divisors.
There are 46430208 positive integers (up to 66804985) that are relatively prime to 66804985.
66804985 has 16 divisors, whose sum is 91412496
The reverse of 66804985 is 58940866
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
sixty-six million eight hundred four thousand nine hundred eighty-five
Scientific notation
6.6804985 × 10^7
Engineering notation
6.6804985 × 10^6
Prime Factorization
13 × 17 × 5 × 60457
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
66804985
Product of the distinct prime numbers
The prime factorization of 66804985 is 13 × 17 × 5 × 60457.
Since it has a total of 4 prime factors.
5 , 3 , 13 , 91 , 889 , 269 , 4941 , 9142 , 32178 , 73781 , 283055 , 473379 , 6883557 , 8983213 , 31123234 , 52807371 , 684863472 , 979565729 , 3536904123 , 6918322135
n×2
133609970
n×3
200414955
n×4
267219940
n×5
334024925
n÷2
33402492.5
n÷3
22268328.333333
n÷3
16701246.25
n÷5
13360997
n2
4462906020850225
n3
2.9814436977931E+23
n4
1.9917530150941E+31
n5
1.3305903029707E+39
2 √n
8173.4316538404
3 √n
405.76036600172
4 √n
90.407033210035
5 √n
36.724997437853
1 , 5 , 13 , 17 , 65 , 85 , 221 , 1105 , 60457 , 302285 , 785941 , 1027769 , 3929705 , 5138845 , 13360997 , 66804985
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
-66804984
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 66804985 can be divided by 16 positive divisors.
The sum of these divisors (counting 66804985) is 1, the average is 0.0625.
Base
System
Value
2
Binary
11111110110101110011111001
3
Ternary
11122201001012201
4
Quaternary
3332311303321
5
Quinary
114100224420
6
Senary
10343510201
8
Octal
376656371
10
Decimal
66804985
12
Duodecimal
1a458361
16
Hexadecimal
3fb5cf9
20
Vigesimal
10hac95
36
Base36
13rv21
md5
6f7304a27da14dd122b30f2fb0e86c5c
sha1
e6f227e2fd988dffbe9a9ab3dc4191aee5279428
sha256
3347e47eeab3f8e76ae3b052b0fb04a2461ec4709bb75d586e43821e40ab41ce
sha512
ae409317e4cea52c88d21ccb36b9f70fd76e8817931e0f1a5ac216ac08800be68d6a8c4a89420d7c736cd4ec715a6d6a0c053d6d2ce2518e6bf1ba74e77fda7f
ripemd-160
33eaad647de5e7436ec1062166eeb2e972804480
Diameter
133609970
Circumference
419748100.19835
Area
1.4020632768765E+16
Volume
1.2488642157438E+24
Surface area
5.6082531075059E+16
Circumference
419748100.19835
Perimeter
267219940
Area
4462906020850225
Diagonal
94476515.821131
Surface area
26777436125101350
Volume
2.9814436977931E+23
Space diagonal
115709628.21888
Perimeter
200414955
Area
1.9324949943794E+15
Altitude
57854814.109438
Surface area
1.9324949943794E+15
Volume
3.513665094059E+22
Height
31492171.940377