66561615 is an odd 8-digits composite number following 66561614
and preceding 66561616 . In scientific notation, it is written as 6.6561615 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors.
There are 35499456 positive integers (up to 66561615) that are relatively prime to 66561615.
66561615 has 16 divisors, whose sum is 118332000
The reverse of 66561615 is 51616566
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
sixty-six million five hundred sixty-one thousand six hundred fifteen
Scientific notation
6.6561615 × 10^7
Engineering notation
6.6561615 × 10^6
Prime Factorization
5 × 3 × 9 × 493049
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
66561615
Product of the distinct prime numbers
The prime factorization of 66561615 is 5 × 3 × 9 × 493049.
Since it has a total of 4 prime factors.
4 , 5 , 1 , 38 , 295 , 856 , 6945 , 4212 , 49972 , 66937 , 463632 , 380541 , 6345405 , 4402195 , 8337478 , 74574320 , 453216931 , 179228890 , 8529961652 , 584878985
n×2
133123230
n×3
199684845
n×4
266246460
n×5
332808075
n÷2
33280807.5
n÷3
22187205
n÷3
16640403.75
n÷5
13312323
n2
4430448591408225
n3
2.9489781341861E+23
n4
1.9628874721111E+31
n5
1.3065296020698E+39
2 √n
8158.53019851
3 √n
405.26703925083
4 √n
90.324582470721
5 √n
36.69820058955
1 , 3 , 5 , 9 , 15 , 27 , 45 , 135 , 493049 , 1479147 , 2465245 , 4437441 , 7395735 , 13312323 , 22187205 , 66561615
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
-66561614
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 66561615 can be divided by 16 positive divisors.
The sum of these divisors (counting 66561615) is 1, the average is 0.0625.
Base
System
Value
2
Binary
11111101111010011001001111
3
Ternary
11122020200101000
4
Quaternary
3331322121033
5
Quinary
114014432430
6
Senary
10334351343
8
Octal
375723117
10
Decimal
66561615
12
Duodecimal
1a35b553
16
Hexadecimal
3f7a64f
20
Vigesimal
10g040f
36
Base36
13mn9r
md5
f60e93186bdb51817ad9ee945f027790
sha1
0e6dc0e9781d0900de85d6ad1d170de499a7f230
sha256
d8c429b785f086ef11e87c08efe2330e640b98914288a86ebd07e8c7250a3c12
sha512
d06e586471e03381bb87f52599daebde2471cb1dee41678fd3509f789c628ae8d95d67e7f89d5fb05e0aaf45633947d001c02207023dd9ce5a117aa09ad11cbf
ripemd-160
b332318f006df9cc759a0fbc6061b9d6d00ee69a
Diameter
133123230
Circumference
418218961.39014
Area
1.3918664746875E+16
Volume
1.2352650722608E+24
Surface area
5.5674658987501E+16
Circumference
418218961.39014
Perimeter
266246460
Area
4430448591408225
Diagonal
94132338.666456
Surface area
26582691548449350
Volume
2.9489781341861E+23
Space diagonal
115288099.01384
Perimeter
199684845
Area
1.9184405151603E+15
Altitude
57644049.506919
Surface area
1.9184405151603E+15
Volume
3.475404060423E+22
Height
31377446.222152