66970981 is an odd 8-digits composite number following 66970980
and preceding 66970982 . In scientific notation, it is written as 6.6970981 × 10^7.
The sum of its digits is 46. It has a total of 3 prime factors and 8 positive divisors.
There are 52185120 positive integers (up to 66970981) that are relatively prime to 66970981.
66970981 has 8 divisors, whose sum is 83496384
The reverse of 66970981 is 18907966
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
sixty-six million nine hundred seventy thousand nine hundred eighty-one
Scientific notation
6.6970981 × 10^7
Engineering notation
6.6970981 × 10^6
Prime Factorization
11 × 7 × 869753
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
66970981
Product of the distinct prime numbers
The prime factorization of 66970981 is 11 × 7 × 869753.
Since it has a total of 3 prime factors.
7 , 9 , 33 , 36 , 749 , 980 , 7418 , 631 , 11166 , 42398 , 262244 , 183832 , 5468113 , 5666218 , 91093979 , 16490703 , 981178254 , 444954478 , 1270109556 , 8078702981
n×2
133941962
n×3
200912943
n×4
267883924
n×5
334854905
n÷2
33485490.5
n÷3
22323660.333333
n÷3
16742745.25
n÷5
13394196.2
n2
4485112296102361
n3
3.0037237036514E+23
n4
2.0116232308649E+31
n5
1.3472038117341E+39
2 √n
8183.5799623392
3 √n
406.09616373385
4 √n
90.463141457387
5 √n
36.743230067026
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
-66970980
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 66970981 can be divided by 8 positive divisors.
The sum of these divisors (counting 66970981) is 1, the average is 0.125.
Base
System
Value
2
Binary
11111111011110010101100101
3
Ternary
11200000110220201
4
Quaternary
3333132111211
5
Quinary
114121032411
6
Senary
10351230501
8
Octal
377362545
10
Decimal
66970981
12
Duodecimal
1a518431
16
Hexadecimal
3fde565
20
Vigesimal
10ib791
36
Base36
13vf51
md5
bcb83900d375ffc35a98cfc924d4ab94
sha1
6e3c4bd062c52238be5c239053d82aa4f7962537
sha256
4a2551394d488d95f2155abefe2c0571b1b586241aa9eab3713d85638ce089e1
sha512
783631b8b60bba1660625be18a790d5efd9f7d17cec3d8c66fb84ead055032a43864b5b058871be721fd8829fec6934a5d9dc9351d4794b7ba66cb87e19d7ba6
ripemd-160
fca4fcde74a2121b5078b3609d78dc49790dc68d
Diameter
133941962
Circumference
420791083.8266
Area
1.409039583996E+16
Volume
1.258196842774E+24
Surface area
5.6361583359842E+16
Circumference
420791083.8266
Perimeter
267883924
Area
4485112296102361
Diagonal
94711269.615631
Surface area
26910673776614166
Volume
3.0037237036514E+23
Space diagonal
115997141.72473
Perimeter
200912943
Area
1.9421105936253E+15
Altitude
57998570.862365
Surface area
1.9421105936253E+15
Volume
3.5399223327711E+22
Height
31570423.20521