66561605 is an odd 8-digits composite number following 66561604
and preceding 66561606 . In scientific notation, it is written as 6.6561605 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 48408400 positive integers (up to 66561605) that are relatively prime to 66561605.
66561605 has 8 divisors, whose sum is 87135264
The reverse of 66561605 is 50616566
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
sixty-six million five hundred sixty-one thousand six hundred five
Scientific notation
6.6561605 × 10^7
Engineering notation
6.6561605 × 10^6
Prime Factorization
5 × 11 × 1210211
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
66561605
Product of the distinct prime numbers
The prime factorization of 66561605 is 5 × 11 × 1210211.
Since it has a total of 3 prime factors.
2 , 4 , 47 , 95 , 529 , 749 , 6871 , 51 , 83664 , 82829 , 501123 , 283110 , 7760847 , 7006393 , 80355338 , 31346461 , 475095724 , 486421393 , 4824968738 , 1228576806
n×2
133123210
n×3
199684815
n×4
266246420
n×5
332808025
n÷2
33280802.5
n÷3
22187201.666667
n÷3
16640401.25
n÷5
13312321
n2
4430447260176025
n3
2.9489768050517E+23
n4
1.9628862925201E+31
n5
1.3065286206264E+39
2 √n
8158.5295856545
3 √n
405.2670189555
4 √n
90.324579078203
5 √n
36.698199486866
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
-66561604
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 66561605 can be divided by 8 positive divisors.
The sum of these divisors (counting 66561605) is 1, the average is 0.125.
Base
System
Value
2
Binary
11111101111010011001000101
3
Ternary
11122020200100122
4
Quaternary
3331322121011
5
Quinary
114014432410
6
Senary
10334351325
8
Octal
375723105
10
Decimal
66561605
12
Duodecimal
1a35b545
16
Hexadecimal
3f7a645
20
Vigesimal
10g0405
36
Base36
13mn9h
md5
bf442fccdd630ea602e8ee20c5955030
sha1
f8ee89acfae862fad27c2f1e1c0f8c506e8e32fd
sha256
7b342ef9d103a38cf284c53e856d5de5e1727a2192f91e7ec71318e0fbeffe2f
sha512
56f1fb6ff60cd44af1c9c6de24f337e2d6432dc4a1612addeedfa74ed059686b7ac13865a9513696298aee8be0d7f5d9b433451f8f3faae7e73545fa08072be4
ripemd-160
ea1ebc38540a03150052affe0002a34bc91ab5c1
Diameter
133123210
Circumference
418218898.55829
Area
1.3918660564686E+16
Volume
1.2352645155143E+24
Surface area
5.5674642258744E+16
Circumference
418218898.55829
Perimeter
266246420
Area
4430447260176025
Diagonal
94132324.524321
Surface area
26582683561056150
Volume
2.9489768050517E+23
Space diagonal
115288081.69333
Perimeter
199684815
Area
1.9184399387198E+15
Altitude
57644040.846665
Surface area
1.9184399387198E+15
Volume
3.4754024940231E+22
Height
31377441.508107