66181809 is an odd 8-digits composite number following 66181808
and preceding 66181810 . In scientific notation, it is written as 6.6181809 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 44121204 positive integers (up to 66181809) that are relatively prime to 66181809.
66181809 has 4 divisors, whose sum is 88242416
The reverse of 66181809 is 90818166
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
sixty-six million one hundred eighty-one thousand eight hundred nine
Scientific notation
6.6181809 × 10^7
Engineering notation
6.6181809 × 10^6
Prime Factorization
3 × 22060603
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
66181809
Product of the distinct prime numbers
The prime factorization of 66181809 is 3 × 22060603.
Since it has a total of 2 prime factors.
6 , 5 , 6 , 81 , 734 , 560 , 2038 , 6651 , 33116 , 74140 , 353238 , 81039 , 983245 , 9994022 , 59888262 , 46944313 , 427462047 , 731650887 , 9022568689 , 5314051920
n×2
132363618
n×3
198545427
n×4
264727236
n×5
330909045
n÷2
33090904.5
n÷3
22060603
n÷3
16545452.25
n÷5
13236361.8
n2
4380031842512481
n3
2.8987843081508E+23
n4
1.9184678941423E+31
n5
1.2696767574276E+39
2 √n
8135.2202797466
3 √n
404.49473952933
4 √n
90.195455981699
5 √n
36.656224086662
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
-66181808
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 66181809 can be divided by 4 positive divisors.
The sum of these divisors (counting 66181809) is 1, the average is 0.25.
Base
System
Value
2
Binary
11111100011101101010110001
3
Ternary
11121112101101010
4
Quaternary
3330131222301
5
Quinary
113420304214
6
Senary
10322301133
8
Octal
374355261
10
Decimal
66181809
12
Duodecimal
1a1b77a9
16
Hexadecimal
3f1dab1
20
Vigesimal
10dcea9
36
Base36
13ei7l
md5
e0cb786fd85765ac6a988da7206d454c
sha1
5a30a54a16b8c9c8ec6738293c91d904a7af4d73
sha256
96b634f1ec389c9cb9d97f83829b1e6528f73f3262489c30f344ddfa55fe79fb
sha512
adaa4860841dbcaa7dac9b097ea6f15914d6d7ee1ec39dc4f9dcbe489f0b1f5ed2822940a56dc38e74cf29641c0267a8233526d2a2a187fc20d1302ccc079bf2
ripemd-160
39965b96674166173f8dbf01c88729a385e0b928
Diameter
132363618
Circumference
415832569.91137
Area
1.3760275858927E+16
Volume
1.2142399315771E+24
Surface area
5.5041103435706E+16
Circumference
415832569.91137
Perimeter
264727236
Area
4380031842512481
Diagonal
93595211.870186
Surface area
26280191055074886
Volume
2.8987843081508E+23
Space diagonal
114630255.72482
Perimeter
198545427
Area
1.8966094225003E+15
Altitude
57315127.86241
Surface area
1.8966094225003E+15
Volume
3.416250069151E+22
Height
31198403.956729