66561608 is an even 8-digits composite number following 66561607
and preceding 66561609 . In scientific notation, it is written as 6.6561608 × 10^7.
The sum of its digits is 38. It has a total of 5 prime factors and 16 positive divisors.
There are 32859216 positive integers (up to 66561608) that are relatively prime to 66561608.
66561608 has 16 divisors, whose sum is 126384000
The reverse of 66561608 is 80616566
Previous prime number is 79
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
sixty-six million five hundred sixty-one thousand six hundred eight
Scientific notation
6.6561608 × 10^7
Engineering notation
6.6561608 × 10^6
Prime Factorization
2 × 2 × 2 × 79 × 105319
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
16640402
Product of the distinct prime numbers
The prime factorization of 66561608 is 2 × 2 × 2 × 79 × 105319.
Since it has a total of 5 prime factors.
10 , 5 , 52 , 40 , 912 , 393 , 8876 , 8852 , 8106 , 9117 , 443804 , 336995 , 4624710 , 1263588 , 98868420 , 27233122 , 122218181 , 608879118 , 8274283397 , 4371254384
n×2
133123216
n×3
199684824
n×4
266246432
n×5
332808040
n÷2
33280804
n÷3
22187202.666667
n÷3
16640402
n÷5
13312321.6
n2
4430447659545664
n3
2.948977203792E+23
n4
1.9628866463974E+31
n5
1.3065289150594E+39
2 √n
8158.5297695112
3 √n
405.2670250441
4 √n
90.324580095958
5 √n
36.698199817671
1 , 2 , 4 , 8 , 79 , 158 , 316 , 632 , 105319 , 210638 , 421276 , 842552 , 8320201 , 16640402 , 33280804 , 66561608
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
-66561607
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 66561608 can be divided by 16 positive divisors.
The sum of these divisors (counting 66561608) is 1, the average is 0.0625.
Base
System
Value
2
Binary
11111101111010011001001000
3
Ternary
11122020200100202
4
Quaternary
3331322121020
5
Quinary
114014432413
6
Senary
10334351332
8
Octal
375723110
10
Decimal
66561608
12
Duodecimal
1a35b548
16
Hexadecimal
3f7a648
20
Vigesimal
10g0408
36
Base36
13mn9k
md5
6fdbd1ed513d5f224191b1fc2a4ef855
sha1
6114263527c6bb9f05d296c56c4167ec5f093ac6
sha256
3e9d210abad01125bc6ecdcdd604c51ff8fdc6244c5fe73a38eecf6a99dec052
sha512
b86d24db5801f7dad865ad40007488cc37b19032c7e1f94937be630aeb254a54ed277a14d35f964671ee39e457e6e713513cfad22288030c0376ad9d3e9c48a0
ripemd-160
f67d7be5009bd76b7bc7bc32f32f8c1f3250cb28
Diameter
133123216
Circumference
418218917.40785
Area
1.3918661819343E+16
Volume
1.2352646825382E+24
Surface area
5.5674647277371E+16
Circumference
418218917.40785
Perimeter
266246432
Area
4430447659545664
Diagonal
94132328.766962
Surface area
26582685957273984
Volume
2.948977203792E+23
Space diagonal
115288086.88948
Perimeter
199684824
Area
1.9184401116519E+15
Altitude
57644043.444742
Surface area
1.9184401116519E+15
Volume
3.4754029639431E+22
Height
31377442.922321