66561656 is an even 8-digits composite number following 66561655
and preceding 66561657 . In scientific notation, it is written as 6.6561656 × 10^7.
The sum of its digits is 41. It has a total of 5 prime factors and 16 positive divisors.
There are 28526400 positive integers (up to 66561656) that are relatively prime to 66561656.
66561656 has 16 divisors, whose sum is 142632240
The reverse of 66561656 is 65616566
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 41
Digital Root 5
Name
sixty-six million five hundred sixty-one thousand six hundred fifty-six
Scientific notation
6.6561656 × 10^7
Engineering notation
6.6561656 × 10^6
Prime Factorization
2 × 2 × 2 × 7 × 1188601
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
16640414
Product of the distinct prime numbers
The prime factorization of 66561656 is 2 × 2 × 2 × 7 × 1188601.
Since it has a total of 5 prime factors.
4 , 1 , 90 , 15 , 90 , 678 , 1981 , 1006 , 36004 , 71692 , 565752 , 486956 , 6114681 , 7683842 , 89063133 , 13421528 , 114224802 , 621945581 , 5840555405 , 3019829323
n×2
133123312
n×3
199684968
n×4
266246624
n×5
332808280
n÷2
33280828
n÷3
22187218.666667
n÷3
16640414
n÷5
13312331.2
n2
4430454049462336
n3
2.9489835836412E+23
n4
1.9628923084397E+31
n5
1.3065336259941E+39
2 √n
8158.5327112171
3 √n
405.26712246168
4 √n
90.32459638004
5 √n
36.698205110551
1 , 2 , 4 , 7 , 8 , 14 , 28 , 56 , 1188601 , 2377202 , 4754404 , 8320207 , 9508808 , 16640414 , 33280828 , 66561656
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
-66561655
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 66561656 can be divided by 16 positive divisors.
The sum of these divisors (counting 66561656) is 1, the average is 0.0625.
Base
System
Value
2
Binary
11111101111010011001111000
3
Ternary
11122020200102112
4
Quaternary
3331322121320
5
Quinary
114014433111
6
Senary
10334351452
8
Octal
375723170
10
Decimal
66561656
12
Duodecimal
1a35b588
16
Hexadecimal
3f7a678
20
Vigesimal
10g042g
36
Base36
13mnaw
md5
7cdb6c036148beb8f632173eba0bdd3f
sha1
22416f046a096dada17876e14b068094cad19613
sha256
ca786e2b22aad96bbaf17354ebe43efbff0310c8207002e5c0ace6a88599181b
sha512
68afd3926f67d67548676d05dbc46617bd35ddd0b659ee45fad021b6a0927a6e5344b0a7750c32c96037b71e0b62dc5cfdd11fef9f21cb7e565844dd208f514d
ripemd-160
4ffd2b9c995377df7c0c57f93d9c275ba48b3b25
Diameter
133123312
Circumference
418219219.00074
Area
1.3918681893858E+16
Volume
1.2352673549232E+24
Surface area
5.5674727575432E+16
Circumference
418219219.00074
Perimeter
266246624
Area
4430454049462336
Diagonal
94132396.649213
Surface area
26582724296774016
Volume
2.9489835836412E+23
Space diagonal
115288170.02792
Perimeter
199684968
Area
1.918442878567E+15
Altitude
57644085.013961
Surface area
1.918442878567E+15
Volume
3.4754104826675E+22
Height
31377465.549738