66498981 is an odd 8-digits composite number following 66498980
and preceding 66498982 . In scientific notation, it is written as 6.6498981 × 10^7.
The sum of its digits is 51. It has a total of 2 prime factors and 4 positive divisors.
There are 44332652 positive integers (up to 66498981) that are relatively prime to 66498981.
66498981 has 4 divisors, whose sum is 88665312
The reverse of 66498981 is 18989466
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 51
Digital Root 6
Name
sixty-six million four hundred ninety-eight thousand nine hundred eighty-one
Scientific notation
6.6498981 × 10^7
Engineering notation
6.6498981 × 10^6
Prime Factorization
3 × 22166327
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
66498981
Product of the distinct prime numbers
The prime factorization of 66498981 is 3 × 22166327.
Since it has a total of 2 prime factors.
10 , 5 , 40 , 14 , 903 , 106 , 3009 , 5236 , 18071 , 9319 , 442357 , 455419 , 8087899 , 8034359 , 35812595 , 19038506 , 156913937 , 350254216 , 272964849 , 928099107
n×2
132997962
n×3
199496943
n×4
265995924
n×5
332494905
n÷2
33249490.5
n÷3
22166327
n÷3
16624745.25
n÷5
13299796.2
n2
4422114474038361
n3
2.940661063889E+23
n4
1.95550964215E+31
n5
1.3003939853865E+39
2 √n
8154.690736012
3 √n
405.13988156996
4 √n
90.303326273244
5 √n
36.691291440022
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-66498980
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 66498981 can be divided by 4 positive divisors.
The sum of these divisors (counting 66498981) is 1, the average is 0.25.
Base
System
Value
2
Binary
11111101101011000110100101
3
Ternary
11122010111110020
4
Quaternary
3331223012211
5
Quinary
114010431411
6
Senary
10333145353
8
Octal
375530645
10
Decimal
66498981
12
Duodecimal
1a32b259
16
Hexadecimal
3f6b1a5
20
Vigesimal
10fc791
36
Base36
13laxx
md5
dcedbad51a27b5593b566a405b5d7fc8
sha1
f603fbf6add4f709def7715245c8560abe854af0
sha256
09e352ec83adaa01e270b02a2c891074140edd050a6fd6cde6b21ebc73ef7e9d
sha512
f686be0c9295a49a1e683ef42420e409b39eb5f2f72af03f5f2bb7fb85b63fe93f002e95139c3b9932be2b45275181f9dd4e58accbcd2352364d86b96c5bc674
ripemd-160
f706084ac83ff7043572c6c93408784eb05113d5
Diameter
132997962
Circumference
417825420.36161
Area
1.3892482344972E+16
Volume
1.2317812260015E+24
Surface area
5.5569929379888E+16
Circumference
417825420.36161
Perimeter
265995924
Area
4422114474038361
Diagonal
94043760.814191
Surface area
26532686844230166
Volume
2.940661063889E+23
Space diagonal
115179613.74356
Perimeter
199496943
Area
1.91483173648E+15
Altitude
57589806.871779
Surface area
1.91483173648E+15
Volume
3.4656022990786E+22
Height
31347920.271397