66561386 is an even 8-digits composite number following 66561385
and preceding 66561387 . In scientific notation, it is written as 6.6561386 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 33280692 positive integers (up to 66561386) that are relatively prime to 66561386.
66561386 has 4 divisors, whose sum is 99842082
The reverse of 66561386 is 68316566
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 41
Digital Root 5
Name
sixty-six million five hundred sixty-one thousand three hundred eighty-six
Scientific notation
6.6561386 × 10^7
Engineering notation
6.6561386 × 10^6
Prime Factorization
2 × 33280693
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
66561386
Product of the distinct prime numbers
The prime factorization of 66561386 is 2 × 33280693.
Since it has a total of 2 prime factors.
3 , 6 , 53 , 6 , 381 , 583 , 5936 , 1072 , 20965 , 51818 , 443805 , 67530 , 7146854 , 8271785 , 54492558 , 42930292 , 551429279 , 381740481 , 8272087194 , 7199578186
n×2
133122772
n×3
199684158
n×4
266245544
n×5
332806930
n÷2
33280693
n÷3
22187128.666667
n÷3
16640346.5
n÷5
13312277.2
n2
4430418106240996
n3
2.948947697109E+23
n4
1.9628604596108E+31
n5
1.3065071271629E+39
2 √n
8158.5161641073
3 √n
405.26657448718
4 √n
90.324504781965
5 √n
36.69817533806
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
-66561385
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 66561386 can be divided by 4 positive divisors.
The sum of these divisors (counting 66561386) is 1, the average is 0.25.
Base
System
Value
2
Binary
11111101111010010101101010
3
Ternary
11122020200001112
4
Quaternary
3331322111222
5
Quinary
114014431021
6
Senary
10334350322
8
Octal
375722552
10
Decimal
66561386
12
Duodecimal
1a35b3a2
16
Hexadecimal
3f7a56a
20
Vigesimal
10g0396
36
Base36
13mn3e
md5
49aee9e7eee8bbe298c32e8c572bd2ab
sha1
459c6fc25f035a282c3fcc9bbad05bf150a0fad6
sha256
7a15eb8273f437d2c848f387070412daf67ef5fb5cd4a80769f3f0668601c48b
sha512
69b0d5c84d5112937a4062bc23e7ac9efe93bd5b04c1a9b5e77754c770dd36ce3f43163f3b03cb2b616e0e9a51a357d71c94d32fc8616f1319b98e6d71d201f5
ripemd-160
c07a0162cacb2293ef8b184d307b7dffca3fb14b
Diameter
133122772
Circumference
418217522.54071
Area
1.3918568974898E+16
Volume
1.2352523228077E+24
Surface area
5.5674275899592E+16
Circumference
418217522.54071
Perimeter
266245544
Area
4430418106240996
Diagonal
94132014.811551
Surface area
26582508637445976
Volume
2.948947697109E+23
Space diagonal
115287702.3742
Perimeter
199684158
Area
1.9184273146956E+15
Altitude
57643851.187102
Surface area
1.9184273146956E+15
Volume
3.4753681899837E+22
Height
31377338.270517