66561666 is an even 8-digits composite number following 66561665
and preceding 66561667 . In scientific notation, it is written as 6.6561666 × 10^7.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 22150800 positive integers (up to 66561666) that are relatively prime to 66561666.
66561666 has 16 divisors, whose sum is 133341888
The reverse of 66561666 is 66616566
Previous prime number is 631
Is Prime? no
Number parity even
Number length 8
Sum of Digits 42
Digital Root 6
Name
sixty-six million five hundred sixty-one thousand six hundred sixty-six
Scientific notation
6.6561666 × 10^7
Engineering notation
6.6561666 × 10^6
Prime Factorization
2 × 3 × 631 × 17581
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
66561666
Product of the distinct prime numbers
The prime factorization of 66561666 is 2 × 3 × 631 × 17581.
Since it has a total of 4 prime factors.
7 , 7 , 94 , 60 , 138 , 660 , 7392 , 8035 , 21129 , 18695 , 692985 , 280478 , 6079763 , 2088484 , 43264216 , 90472554 , 104912998 , 780596923 , 8701700094 , 9677494895
n×2
133123332
n×3
199684998
n×4
266246664
n×5
332808330
n÷2
33280833
n÷3
22187222
n÷3
16640416.5
n÷5
13312333.2
n2
4430455380695556
n3
2.9489849127776E+23
n4
1.9628934880334E+31
n5
1.3065346074406E+39
2 √n
8158.5333240724
3 √n
405.26714275701
4 √n
90.324599772556
5 √n
36.698206213234
1 , 2 , 3 , 6 , 631 , 1262 , 1893 , 3786 , 17581 , 35162 , 52743 , 105486 , 11093611 , 22187222 , 33280833 , 66561666
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
-66561665
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 66561666 can be divided by 16 positive divisors.
The sum of these divisors (counting 66561666) is 1, the average is 0.0625.
Base
System
Value
2
Binary
11111101111010011010000010
3
Ternary
11122020200102220
4
Quaternary
3331322122002
5
Quinary
114014433131
6
Senary
10334351510
8
Octal
375723202
10
Decimal
66561666
12
Duodecimal
1a35b596
16
Hexadecimal
3f7a682
20
Vigesimal
10g0436
36
Base36
13mnb6
md5
91273ae4fc9245cb8c57226f8bbf8dd9
sha1
8706e33b4f47343944730cacc7cfc36ac6e562ba
sha256
e078eb2771dada1f4b64ef04317a55f7abb6b53d52f8eb8b75c9d005f6aeb14e
sha512
2b8b79521ddafffb71da140cac53add47d84fa872281b2c13f105ab8b82ab083da546c4502768bce626989329877d622035608dd292ab9e434f8e676a45e293c
ripemd-160
c29bba6ae6f5278b444166806649a5ce947addcc
Diameter
133123332
Circumference
418219281.8326
Area
1.3918686076051E+16
Volume
1.2352679116706E+24
Surface area
5.5674744304202E+16
Circumference
418219281.8326
Perimeter
266246664
Area
4430455380695556
Diagonal
94132410.791348
Surface area
26582732284173336
Volume
2.9489849127776E+23
Space diagonal
115288187.34843
Perimeter
199684998
Area
1.9184434550079E+15
Altitude
57644093.674215
Surface area
1.9184434550079E+15
Volume
3.4754120490698E+22
Height
31377470.263783