66561689 is an odd 8-digits composite number following 66561688
and preceding 66561690 . In scientific notation, it is written as 6.6561689 × 10^7.
The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors.
There are 66046896 positive integers (up to 66561689) that are relatively prime to 66561689.
66561689 has 8 divisors, whose sum is 67079040
The reverse of 66561689 is 98616566
Previous prime number is 367
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
sixty-six million five hundred sixty-one thousand six hundred eighty-nine
Scientific notation
6.6561689 × 10^7
Engineering notation
6.6561689 × 10^6
Prime Factorization
293 × 367 × 619
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
66561689
Product of the distinct prime numbers
The prime factorization of 66561689 is 293 × 367 × 619.
Since it has a total of 3 prime factors.
8 , 7 , 38 , 86 , 739 , 528 , 5201 , 6797 , 52727 , 42661 , 502576 , 996433 , 5242248 , 3257064 , 93903339 , 18098374 , 166895297 , 367892339 , 2185638914 , 9677173629
n×2
133123378
n×3
199685067
n×4
266246756
n×5
332808445
n÷2
33280844.5
n÷3
22187229.666667
n÷3
16640422.25
n÷5
13312337.8
n2
4430458442532721
n3
2.9489879697929E+23
n4
1.9628962011009E+31
n5
1.3065368647696E+39
2 √n
8158.5347336394
3 √n
405.26718943624
4 √n
90.324607575341
5 √n
36.698208749405
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-66561688
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 66561689 can be divided by 8 positive divisors.
The sum of these divisors (counting 66561689) is 1, the average is 0.125.
Base
System
Value
2
Binary
11111101111010011010011001
3
Ternary
11122020200110202
4
Quaternary
3331322122121
5
Quinary
114014433224
6
Senary
10334351545
8
Octal
375723231
10
Decimal
66561689
12
Duodecimal
1a35b5b5
16
Hexadecimal
3f7a699
20
Vigesimal
10g0449
36
Base36
13mnbt
md5
3e3cf8fb221b6463787512ccbc9c2879
sha1
74e9ef6de47a0037a09ed6566b4903d670025de0
sha256
632f490766cf6ec86ee9c4b8c547f5970fb37383ba86907c006be4f04164c850
sha512
2e769ae4068ae8725d050e37f72641a2e7181755df8f31a8ae4f1faeccc7052d004449cbe51d484a6b9252df02fe0aa9439d4b43bde2fb4246aa7a9342ee5c55
ripemd-160
40ccd5f1fe2ff1d86f1d76800b9edfecd1b470d9
Diameter
133123378
Circumference
418219426.34586
Area
1.3918695695096E+16
Volume
1.2352691921901E+24
Surface area
5.5674782780383E+16
Circumference
418219426.34586
Perimeter
266246756
Area
4430458442532721
Diagonal
94132443.31826
Surface area
26582750655196326
Volume
2.9489879697929E+23
Space diagonal
115288227.1856
Perimeter
199685067
Area
1.9184447808223E+15
Altitude
57644113.592799
Surface area
1.9184447808223E+15
Volume
3.4754156517968E+22
Height
31377481.106087