66698081 is an odd 8-digits composite number following 66698080
and preceding 66698082 . In scientific notation, it is written as 6.6698081 × 10^7.
The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors.
There are 63951120 positive integers (up to 66698081) that are relatively prime to 66698081.
66698081 has 8 divisors, whose sum is 69484800
The reverse of 66698081 is 18089666
Previous prime number is 109
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
sixty-six million six hundred ninety-eight thousand eighty-one
Scientific notation
6.6698081 × 10^7
Engineering notation
6.6698081 × 10^6
Prime Factorization
31 × 109 × 19739
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
66698081
Product of the distinct prime numbers
The prime factorization of 66698081 is 31 × 109 × 19739.
Since it has a total of 3 prime factors.
1 , 5 , 69 , 80 , 197 , 299 , 3007 , 5311 , 23354 , 58754 , 62055 , 553801 , 9708433 , 6169702 , 83625867 , 8648539 , 624044403 , 174866495 , 7156654983 , 6649518034
n×2
133396162
n×3
200094243
n×4
266792324
n×5
333490405
n÷2
33349040.5
n÷3
22232693.666667
n÷3
16674520.25
n÷5
13339616.2
n2
4448634009082561
n3
2.9671535147714E+23
n4
1.9790344546766E+31
n5
1.3199780035981E+39
2 √n
8166.8893098903
3 √n
405.54381247733
4 √n
90.370843250964
5 √n
36.713236146118
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
-66698080
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 66698081 can be divided by 8 positive divisors.
The sum of these divisors (counting 66698081) is 1, the average is 0.125.
Base
System
Value
2
Binary
11111110011011101101100001
3
Ternary
11122111121120022
4
Quaternary
3332123231201
5
Quinary
114033314311
6
Senary
10341323225
8
Octal
376335541
10
Decimal
66698081
12
Duodecimal
1a406515
16
Hexadecimal
3f9bb61
20
Vigesimal
10gh541
36
Base36
13pkkh
md5
33ca7201fa0f207787148b4266bb2907
sha1
23f7b07877532cf41bdc13ecece09b129fd57901
sha256
523aa0f21eae4b4ca6193e6df19d8e3c4c171427b1b922fd7afdcd14fb6cbf0e
sha512
839703c404bfcd968d3d04ef0f66ad0e2461b5c380a8c4fea7ca760a9ede6fe1503022db978cf701d53e233796945e2d02829aa3fec573211420e3d2de00f1b9
ripemd-160
ca8cbe310db12a50a3872f937e0e96995ad6e460
Diameter
133396162
Circumference
419076402.55627
Area
1.3975795921443E+16
Volume
1.2428783578772E+24
Surface area
5.5903183685774E+16
Circumference
419076402.55627
Perimeter
266792324
Area
4448634009082561
Diagonal
94325330.734459
Surface area
26691804054495366
Volume
2.9671535147714E+23
Space diagonal
115524465.05934
Perimeter
200094243
Area
1.9263150320025E+15
Altitude
57762232.529672
Surface area
1.9263150320025E+15
Volume
3.4968239518606E+22
Height
31441776.911486